Exhibit 1.1

UNDERWRITING AGREEMENT

$500,000,000

IDEX CORPORATION

3.0% Senior Notes due 2030

April 27, 2020

BofA Securities, Inc.

J.P. Morgan Securities LLC

Wells Fargo Securities, LLC

As Representatives of the

several Underwriters listed

in Schedule 1 hereto

One Bryant Park

New York, New York 10036

J.P. Morgan Securities LLC

383 Madison Avenue

New York, New York 10179

Wells Fargo Securities, LLC

550 South Tryon Street, 5th Floor

Charlotte, North Carolina 28202

Ladies and Gentlemen:

IDEX Corporation, a Delaware corporation (the “Company”), proposes to issue and sell to the several Underwriters listed in Schedule 1 hereto (the “Underwriters”), for whom you are acting as representatives (the “Representatives”), $500,000,000 principal amount of its 3.0% Senior Notes due 2030 (the “Securities”). The Securities will be issued pursuant to an indenture dated as of December 6, 2010 (the “Base Indenture”) between the Company and Wells Fargo Bank, National Association, as trustee (the “Trustee”), as supplemented by a Third Supplemental Indenture to be dated as of April

29, 2020, between the Company and the Trustee (the “Supplemental Indenture” and together with the Base Indenture, the “Indenture”).

The Company hereby confirms its agreement with the several Underwriters concerning the purchase and sale of the Securities, as follows:

1.     Registration Statement . The Company has prepared and filed with the Securities and Exchange Commission (the “Commission”) under the Securities Act of 1933, as amended, and the rules and regulations of the Commission thereunder (collectively, the “Securities Act”), a registration statement on Form S-3 (File No. 333-237847), including a prospectus (the “Basic Prospectus”), relating to the debt securities to be issued from time to time by the Company. The Company has also filed, or proposes to file, with the Commission pursuant to Rule 424 under the Securities Act a prospectus supplement specifically relating to the Securities (the “Prospectus Supplement”). The registration statement, as amended at the time it becomes effective, including the information, if any, deemed pursuant to Rule 430A, 430B or 430C under the Securities Act to be part of the registration statement at the time of its effectiveness (“Rule 430 Information”), is referred to herein as the “Registration Statement”; and as used herein, the term “Prospectus” means the Basic Prospectus as supplemented by the prospectus supplement specifically relating to the Securities in the form first used (or made available upon request of purchasers pursuant to Rule 173 under the Securities Act) in connection with confirmation of sales of the Securities and the term “Preliminary Prospectus” means the preliminary prospectus supplement specifically relating to the Securities together with the Basic Prospectus. If the Company has filed an abbreviated registration statement pursuant to Rule 462(b) under the Securities Act (the “Rule 462 Registration Statement”), then any reference herein to the term “Registration Statement” shall be deemed to include such Rule 462 Registration Statement. Capitalized terms used but not defined herein shall have the meanings given to such terms in the Registration Statement and the Prospectus. References herein to the Registration Statement, the Basic Prospectus, any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include the documents incorporated by reference therein. The terms “supplement,” “amendment” and “amend” as used herein with respect to the Registration Statement, any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include any documents filed by the Company under the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission thereunder (the “Exchange Act”) subsequent to the date of the Underwriting Agreement which are deemed to be incorporated by reference therein. For purposes of this Agreement, the term “Effective Time” means the effective date of the Registration Statement with respect to the offering of Securities, as determined for the Company pursuant to Section 11 of the Securities Act and Item 512 of Regulation S-K, as applicable.

At or prior to the time when sales of the Securities were first made (the “Time of Sale”), the Company has prepared certain information (collectively, the “Time of Sale

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Information”) which information is identified in Schedule 3 to this Agreement for such offering of Securities as constituting part of the Time of Sale Information.

2.     Purchase of the Securities by the Underwriters . (a) The Company agrees to issue and sell the Securities to the several Underwriters as provided in this Agreement, and each Underwriter, on the basis of the representations, warranties and agreements set forth herein and subject to the conditions set forth herein, agrees, severally and not jointly, to purchase from the Company the respective principal amount of Securities set forth opposite such Underwriter’s name in Schedule 1 hereto at a price equal to 99.170% of the principal amount thereof plus accrued interest, if any, from April 27, 2020 to the Closing Date (as defined below). The Company will not be obligated to deliver any of the Securities except upon payment for all the Securities to be purchased as provided herein.

(b)    The Company understands that the Underwriters intend to make a public offering of the Securities as soon after the effectiveness of this Agreement as in the judgment of the Representatives is advisable, and initially to offer the Securities on the terms set forth in the Prospectus. The Company acknowledges and agrees that the Underwriters may offer and sell Securities to or through any affiliate of an Underwriter and that any such affiliate may offer and sell Securities purchased by it to or through any Underwriter.

(c)    Payment for and delivery of the Securities will be made at the offices of Davis Polk & Wardwell LLP at 10:00 A.M., New York City time, on April 29, 2020 or at such other time or place on the same or such other date, not later than the fifth business day thereafter, as the Representatives and the Company may agree upon in writing. The time and date of such payment and delivery is referred to herein as the “Closing Date”.

(d)    Payment for the Securities shall be made by wire transfer in immediately available funds to the account(s) specified by the Company to the Representatives against delivery to the nominee of The Depository Trust Company, for the account of the Underwriters, of one or more global notes representing the Securities (collectively, the “Global Note”), with any transfer taxes payable in connection with the sale of the Securities duly paid by the Company. The Global Note will be made available for inspection by the Representatives not later than 1:00 P.M., New York City time, on the business day prior to the Closing Date.

(e)    The Company acknowledges and agrees that the Underwriters are acting solely in the capacity of an arm’s length contractual counterparty to the Company with respect to the offering of Securities contemplated hereby (including in connection with determining the terms of the offering) and not as a financial advisor or a fiduciary to, or an agent of, the Company or any other person. Additionally, neither the Representatives nor any other Underwriter is advising the Company or any other person as to any legal, tax, investment, accounting or regulatory matters in any jurisdiction.

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The Company shall consult with its own advisors concerning such matters and shall be responsible for making its own independent investigation and appraisal of the transactions contemplated hereby, and the Underwriters shall have no responsibility or liability to the Company with respect thereto. Any review by the Underwriters of the Company, the transactions contemplated hereby or other matters relating to such transactions will be performed solely for the benefit of the Underwriters and shall not be on behalf of the Company.

3.     Representations and Warranties of the Company . The Company represents and warrants to each Underwriter that:

(a)     Registration Statement and Prospectus. The Registration Statement is an “automatic shelf registration statement” as defined under Rule 405 of the Securities Act that has been filed with the Commission not earlier than three years prior to the date hereof; and no notice of objection of the Commission to the use of such registration statement or any post-effective amendment thereto pursuant to Rule 401(g)(2) under the Securities Act has been received by the Company. No order suspending the effectiveness of the Registration Statement has been issued by the Commission and no proceeding for that purpose or pursuant to Section 8A of the Securities Act against the Company or related to the offering has been initiated or threatened by the Commission; as of the Effective Time, the Registration Statement complied in all material respects with the Securities Act and the Trust Indenture Act of 1939, as amended, and the rules and regulations of the Commission thereunder (collectively, the “Trust Indenture Act”), and did not or will not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein not misleading; and as of the date of the Prospectus and any amendment or supplement thereto and as of the Closing Date, the Prospectus did not and will not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the Company makes no representation and warranty with respect to (i) that part of the Registration Statement that constitutes the Statement of Eligibility and Qualification (Form T-1) of the Trustee under the Trust Indenture Act or (ii) any statements or omissions in the Registration Statement and the Prospectus and any amendment or supplement thereto made in reliance upon and in conformity with information relating to any Underwriter furnished to the Company in writing by such Underwriter through the Representatives expressly for use therein which information, if any, is identified in Section 7(b) hereto.

(b)     Time of Sale Information . The Time of Sale Information, at the Time of Sale and at the Closing Date did not and will not, contain any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the Company makes no representation and warranty with respect to any statements or omissions made in reliance upon and in conformity with information

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relating to any Underwriter furnished to the Company in writing by such Underwriter through the Representatives expressly for use in such Time of Sale Information which information, if any, is identified in Section 7(b) hereto. No statement of material fact included in the Prospectus has been omitted from the Time of Sale Information and no statement of material fact included in the Time of Sale Information that is required to be included in the Prospectus has been omitted therefrom.

(c)     Issuer Free Writing Prospectus . The Company (including its agents and representatives, other than the Underwriters in their capacity as such) has not prepared, made, used, authorized, approved or referred to and will not prepare, make, use, authorize, approve or refer to any “written communication” (as defined in Rule 405 under the Securities Act) that constitutes an offer to sell or solicitation of an offer to buy the Securities (each such communication by the Company or its agents and representatives (other than a communication referred to in clauses (i), (ii) and (iii) below) an “Issuer Free Writing Prospectus”) other than (i) any document not constituting a prospectus pursuant to Section 2(a)(10)(a) of the Securities Act or Rule 134 under the Securities Act, (ii) the Preliminary Prospectus, (iii) the Prospectus, (iv) the documents listed on Schedule 3 hereto and (v) any electronic road show or other written communications, in each case approved in writing in advance by the Representatives. Each such Issuer Free Writing Prospectus complied in all material respects with the Securities Act, has been or will be (within the time period specified in Rule 433) filed in accordance with the Securities Act (to the extent required thereby) and, when taken together with the Preliminary Prospectus accompanying, or delivered prior to delivery of, or filed prior to the first use of such Issuer Free Writing Prospectus, did not, and at the Closing Date will not, contain any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the Company makes no representation and warranty with respect to any statements or omissions made in each such Issuer Free Writing Prospectus in reliance upon and in conformity with information relating to any Underwriter furnished to the Company in writing by such Underwriter through the Representatives expressly for use in any Issuer Free Writing Prospectus which information, if any, is identified in Section 7(b) hereto.

(d)     Incorporated Documents . The documents incorporated by reference in the Registration Statement, the Prospectus and the Time of Sale Information, when filed with the Commission, conformed or will conform, as the case may be, in all material respects with the requirements of the Exchange Act and did not and will not contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading.

(e)     Financial Statements. The financial statements and the related notes thereto included or incorporated by reference in the Registration Statement, the Time of Sale Information and the Prospectus comply in all material respects with the applicable requirements of the Securities Act and the Exchange Act, as applicable, and present

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fairly, in all material respects, the financial position of the Company and its subsidiaries as of the dates indicated and the results of their operations and the changes in their cash flows for the periods specified; such financial statements have been prepared in conformity with generally accepted accounting principles in the United States applied on a consistent basis throughout the periods covered thereby, except as otherwise set forth in the notes thereto, and the supporting schedules included or incorporated by reference in the Registration Statement present fairly, in all material respects, the information required to be stated therein; and the other financial information included or incorporated by reference in the Registration Statement, the Time of Sale Information and the Prospectus has been derived from the accounting records of the Company and its subsidiaries and presents fairly, in all material respects, the information shown thereby. The interactive data in eXtensbile Business Reporting Language included or incorporated by reference in the Registration Statement, the Prospectus and the Time of Sale Information fairly presents the information called for in all material respects and is prepared in accordance with the Commission’s rules and guidelines applicable thereto.

(f)     No Material Adverse Change. Since the date of the most recent financial statements of the Company included or incorporated by reference in the Registration Statement, the Time of Sale Information and the Prospectus, (i) there has not been any material change in the capital stock or long-term debt of the Company or any of its significant subsidiaries, or any dividend or distribution of any kind declared, set aside for payment, paid or made by the Company on any class of capital stock, or any material adverse change, or any development that would reasonably be expected to result in a material adverse change, in or affecting the business, properties, management, financial position or results of operations of the Company and its subsidiaries taken as a whole; (ii) neither the Company nor any of its subsidiaries has entered into any transaction or agreement that is material to the Company and its subsidiaries taken as a whole or incurred any liability or obligation, direct or contingent, that is material to the Company and its subsidiaries taken as a whole; and (iii) neither the Company nor any of its subsidiaries has sustained any loss or interference with its business that is material to the Company and its subsidiaries, taken as a whole, and that is from fire, explosion, flood or other calamity, whether or not covered by insurance, or from any labor disturbance or dispute or any action, order or decree of any court or arbitrator or governmental or regulatory authority, except in each case as otherwise disclosed in the Registration Statement, the Time of Sale Information and the Prospectus.

(g)     Organization and Good Standing. The Company and each of its significant subsidiaries have been duly organized and are validly existing and in good standing under the laws of their respective jurisdictions of organization, are duly qualified to do business and are in good standing in each jurisdiction in which their respective ownership or lease of property or the conduct of their respective businesses requires such qualification, and have all power and authority necessary to own or hold their respective properties and to conduct the businesses in which they are engaged, except where the failure to be so qualified, in good standing or have such power or authority would not, individually or in the

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aggregate, have a material adverse effect on the business, properties, management, financial position or results of operations of the Company and its subsidiaries taken as a whole or on the performance by the Company of its obligations under the Securities (a “Material Adverse Effect”). As of February 21, 2020, the date of filing of the Company’s Annual Report on Form 10-K for the year ended December 31, 2019, the Company did not own or control, directly or indirectly, any corporation, association or other entity other than the subsidiaries listed in Exhibit 21 thereto. Subsequent to February 21, 2020, the Company acquired Flow Management Devices, LLC, FMD Fabrication Services, LLC, Oil & Gas Process Solutions, LLC and FMD Distribution Service, LLC. The subsidiaries listed in Schedule 2 to this Agreement are the only significant subsidiaries of the Company.

(h)     Capitalization. As of March 31, 2020, the Company had an authorized capitalization as set forth in the Registration Statement, the Time of Sale Information and the Prospectus under the heading “Capitalization”; and all the outstanding shares of capital stock or other equity interests of each significant subsidiary of the Company have been duly and validly authorized and issued, are fully paid and non-assessable and are owned directly or indirectly by the Company, free and clear of any lien, charge, encumbrance, security interest, restriction on voting or transfer or any other claim of any third party.

(i)     Due Authorization. The Company has full right, power and authority to execute and deliver this Agreement, the Securities and the Indenture (collectively, the “Transaction Documents”) and to perform its obligations hereunder and thereunder; and all action required to be taken for the due and proper authorization, execution and delivery of each of the Transaction Documents and the consummation of the transactions contemplated thereby has been duly and validly taken.

(j)     The Indenture. The Base Indenture has been duly authorized, executed and delivered by the Company and has been duly qualified under the Trust Indenture Act and constitutes a valid and legally binding agreement of the Company enforceable against the Company in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency or similar laws affecting the enforcement of creditors’ rights generally or by equitable principles relating to enforceability (collectively, the “Enforceability Exceptions”). The Supplemental Indenture has been duly authorized by the Company and, when duly executed and delivered in accordance with its terms by each of the parties thereto, will constitute a valid and legally binding agreement of the Company enforceable against the Company in accordance with its terms, except as enforceability may be limited by the Enforceability Exceptions.

(k)     The Securities . The Securities have been duly authorized by the Company and, when duly executed, authenticated, issued and delivered as provided in the Indenture and paid for as provided herein, will be duly and validly issued and outstanding and will constitute valid and legally binding obligations of the Company enforceable against the Company in accordance with their terms, subject to the Enforceability Exceptions, and will be entitled to the benefits of the Indenture.

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(l)       Underwriting Agreement . This Agreement has been duly authorized, executed and delivered by the Company.

(m)     Descriptions of the Transaction Documents . Each Transaction Document conforms in all material respects to the description thereof contained in the Registration Statement, the Time of Sale Information and the Prospectus.

(n)     No Violation or Default. Neither the Company nor any of its subsidiaries is (i) in violation of its charter or by-laws or similar organizational documents; (ii) in default, and no event has occurred that, with notice or lapse of time or both, would constitute such a default, in the due performance or observance of any term, covenant or condition contained in any indenture, mortgage, deed of trust, loan agreement or other agreement or instrument to which the Company or any of its subsidiaries is a party or by which the Company or any of its subsidiaries is bound or to which any of the property or assets of the Company or any of its subsidiaries is subject; or (iii) in violation of any law or statute or any judgment, order, rule or regulation of any court or arbitrator or governmental or regulatory authority having jurisdiction over the Company or any of its subsidiaries or any of their properties or assets, except, in the case of clauses (ii) and (iii) above, for any such default or violation that would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(o)     No Conflicts. The execution, delivery and performance by the Company of each of the Transaction Documents, the issuance and sale of the Securities and compliance by the Company with the terms thereof and the consummation of the transactions contemplated by the Transaction Documents will not (i) conflict with or result in a breach or violation of any of the terms or provisions of, or constitute a default under, result in the termination, modification or acceleration of or result in the creation or imposition of any lien, charge or encumbrance upon any property or assets of the Company or any of its subsidiaries pursuant to, any indenture, mortgage, deed of trust, loan agreement or other agreement or instrument to which the Company or any of its subsidiaries is a party or by which the Company or any of its subsidiaries is bound or to which any of the property or assets of the Company or any of its subsidiaries is subject, (ii) result in any violation of the provisions of the charter or by-laws or similar organizational documents of the Company or any of its subsidiaries or (iii) result in the violation of any law or statute or any judgment, order, rule or regulation of any court or arbitrator or governmental or regulatory authority having jurisdiction over the Company or any of its subsidiaries or any of their properties or assets, except, in the case of clauses (i) and (iii) above, for any such conflict, breach, violation, default, lien, charge or encumbrance that would not, individually or in the aggregate, have a Material Adverse Effect.

(p)     No Consents Required . No consent, approval, authorization, order, registration or qualification of or with any court or arbitrator or governmental or regulatory authority is required for the execution, delivery and performance by the Company of each of the Transaction Documents, the issuance and sale of the Securities and compliance by

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the Company with the terms thereof and the consummation of the transactions contemplated by the Transaction Documents, except for such consents, approvals, authorizations, orders and registrations or qualifications (i) as have been obtained under the Securities Act and the Trust Indenture Act and (ii) as may be required under applicable state securities laws in connection with the purchase and distribution of the Securities by the Underwriters.

(q)     Legal Proceedings. Except as described in the Registration Statement, the Time of Sale Information and the Prospectus, there are no legal, governmental or regulatory investigations, actions, suits, arbitrations or proceedings pending to which the Company or any of its subsidiaries is or may be a party or to which any property of the Company or any of its subsidiaries is or may be the subject that, individually or in the aggregate, if determined adversely to the Company or any of its subsidiaries, would reasonably be expected to have a Material Adverse Effect; and, to the best knowledge of the Company, no such investigations, actions, suits, arbitrations or proceedings are threatened or contemplated by any governmental or regulatory authority or threatened by others.

(r)     Independent Accountants. To the knowledge of the Company, Deloitte & Touche LLP, who have certified certain financial statements of the Company and its subsidiaries are an independent registered public accounting firm with respect to the Company and its subsidiaries within the applicable rules and regulations adopted by the Commission and the Public Company Accounting Oversight Board (United States) and as required by the Securities Act.

(s)     Title to Real and Personal Property. The Company and its subsidiaries have good and marketable title in fee simple to, or have valid rights to lease or otherwise use, all items of real and personal property that are material to the respective businesses of the Company and its subsidiaries, in each case free and clear of all liens, charges, encumbrances, claims and defects and imperfections of title except those that (i) do not materially interfere with the use made and proposed to be made of such property by the Company and its subsidiaries or (ii) would not reasonably be expected, individually or in the aggregate, to have a Material Adverse Effect.

(t)     Title to Intellectual Property. (i) The Company and its subsidiaries own or have the right to use all patents, patent applications, trademarks, service marks, trade names, trademark registrations, service mark registrations, domain names and other source indicators, copyrights and copyrightable works, know-how, trade secrets and proprietary or confidential information (collectively, “Intellectual Property”) used in the conduct of their respective businesses as currently conducted; (ii) to the knowledge of the Company, the Company and its subsidiaries’ conduct of their respective businesses as currently conducted does not infringe, misappropriate or otherwise violate any Intellectual Property of any person; (iii) the Company and its subsidiaries have not received any written notice of any claim relating to Intellectual Property; and (iv) to the knowledge of the Company, the Intellectual Property of the Company and their subsidiaries is not being

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infringed, misappropriated or otherwise violated by any person, except, in each case, as would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(u)     Investment Company Act. The Company is not and, after giving effect to the offering and sale of the Securities and the application of the proceeds thereof as described in the Registration Statement, the Time of Sale Information and the Prospectus, will not be an “investment company” or an entity “controlled” by an “investment company” within the meaning of the Investment Company Act of 1940, as amended, and the rules and regulations of the Commission thereunder (collectively, the “Investment Company Act”).

(v)     Taxes. The Company and its subsidiaries have paid all federal, state, local and foreign taxes and filed all tax returns required to be paid or filed through the date hereof, except where the failure to pay such taxes or file such returns would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect; and except as otherwise disclosed in the Registration Statement, the Time of Sale Information and the Prospectus, there is no tax deficiency that has been, or would reasonably be expected to be, asserted against the Company or any of its subsidiaries or any of their respective properties or assets, except as would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(w)     Licenses and Permits. The Company and its subsidiaries possess all licenses, sub-licenses, certificates, permits and other authorizations issued by, and have made all declarations and filings with, the appropriate federal, state, local or foreign governmental or regulatory authorities that are necessary for the ownership or lease of their respective properties or the conduct of their respective businesses as described in the Registration Statement, the Time of Sale Information and the Prospectus, except where the failure to possess or make the same would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect; and except as described in the Registration Statement, the Time of Sale Information and the Prospectus, neither the Company nor any of its subsidiaries has received notice of any revocation or modification of any such license, sub-license, certificate, permit or authorization or has any reason to believe that any such license, sub-license, certificate, permit or authorization will not be renewed in the ordinary course, except where such revocation, modification or failure to renew would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(x)     No Labor Disputes. No labor disturbance by or dispute with employees of the Company or any of its subsidiaries exists or, to the best knowledge of the Company, is contemplated or threatened, and the Company is not aware of any existing or imminent labor disturbance by, or dispute with, the employees of any of its or its subsidiaries’ principal suppliers, contractors or customers, except, in each case, as would not reasonably be expected to have a Material Adverse Effect.

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(y)     Compliance With Environmental Laws. (i) The Company and its subsidiaries (x) are in compliance with any and all applicable federal, state, local and foreign laws rules, regulations, requirements, decisions and orders relating to the protection of human health or safety, the environment, natural resources, hazardous or toxic substances or wastes, pollutants or contaminants (collectively, “Environmental Laws”); (y) have received and are in compliance with all permits, licenses, certificates or other authorizations or approvals required of them under applicable Environmental Laws to conduct their respective businesses; and (z) have not received notice of any actual or potential liability or claims under or relating to any Environmental Laws, including for the investigation or remediation of any disposal or release of hazardous or toxic substances or wastes, pollutants or contaminants and have no knowledge of any event or condition that would reasonably be expected to result in any such notice or claim; (ii) there are no costs or liabilities associated with Environmental Laws of or relating to the Company or its subsidiaries, except in the case of each of (i) and (ii) above, for any such failure to comply with, or failure to receive required permits, licenses, certificates, authorizations or approvals, or cost or liability as would not, individually or in the aggregate, have a Material Adverse Effect; and (iii) except as described in each of the Time of Sale Information and the Prospectus, (x) there are no proceedings that are pending, or, to the knowledge of the Company, that are known to be contemplated, against the Company or any of its subsidiaries under any Environmental Laws in which a governmental entity is also a party, other than such proceedings regarding which it is reasonably believed no monetary sanctions of $100,000 or more will be imposed, (y) the Company and its subsidiaries are not aware of any material issues regarding compliance with Environmental Laws, or material liabilities or other material obligations under Environmental Laws or concerning hazardous or toxic substances or wastes, pollutants or contaminants, that would reasonably be expected to have a material effect on the capital expenditures, earnings or competitive position of the Company and its subsidiaries, and (z) none of the Company and its subsidiaries anticipates material capital expenditures relating to any Environmental Laws.

(z)     Disclosure Controls . The Company (including its consolidated subsidiaries) maintains an effective system of “disclosure controls and procedures” (as defined in Rule 13a-15(e) of the Exchange Act) that is designed to ensure that information required to be disclosed by the Company in reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Commission’s rules and forms, including controls and procedures designed to ensure that such information is accumulated and communicated to the Company’s management as appropriate to allow timely decisions regarding required disclosure. The Company and its subsidiaries have carried out evaluations of the effectiveness of their disclosure controls and procedures as required by Rule 13a-15 of the Exchange Act.

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(aa)     Accounting Controls . The Company (including its consolidated subsidiaries) maintains systems of “internal control over financial reporting” (as defined in Rule 13a-15(f) of the Exchange Act) that comply with the requirements of the Exchange Act and have been designed by, or under the supervision of their respective principal executive and principal financial officers, or persons performing similar functions, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles, including, but not limited to internal accounting controls sufficient to provide reasonable assurance that (i) transactions are executed in accordance with management’s general or specific authorizations; (ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with generally accepted accounting principles and to maintain asset accountability; (iii) access to assets is permitted only in accordance with management’s general or specific authorization; (iv) the recorded accountability for assets is compared with the existing assets at reasonable intervals and appropriate action is taken with respect to any differences and (v) interactive data in eXtensbile Business Reporting Language included or incorporated by reference in the Registration Statement, the Prospectus and the Time of Sale Information is prepared in accordance with the Commission’s rules and guidelines applicable thereto. Except as disclosed in the Registration Statement, the Time of Sale Information and the Prospectus, there are no material weaknesses or significant deficiencies in the Company’s internal controls.

(bb)     Insurance. The Company and its subsidiaries have insurance covering their respective properties, operations, personnel and businesses, including business interruption insurance, which insurance is in amounts and insures against such losses and risks as is customary in the Company’s industry; and neither the Company nor any of its subsidiaries (i) received notice from any insurer or agent of such insurer that capital

improvements or other expenditures are required or necessary to be made in order to

continue such insurance or (ii) has any reason to believe that it will not be able to renew its existing insurance coverage as and when such coverage expires or to obtain similar coverage at reasonable cost from similar insurers as may be necessary to continue its business.

(cc)     Compliance with Money Laundering Laws . The operations of the Company and its subsidiaries are and have been conducted at all times in compliance with applicable financial recordkeeping and reporting requirements of the Currency and Foreign Transactions Reporting Act of 1970, as amended, the money laundering statutes of all applicable jurisdictions, the rules and regulations thereunder and any related or similar rules, regulations or guidelines, issued, administered or enforced by any governmental agency (collectively, the “Money Laundering Laws”) and no action, suit or proceeding by or before any court or governmental agency, authority or body or any arbitrator involving the Company or any of its subsidiaries with respect to the Money Laundering Laws is pending or, to the best knowledge of the Company, threatened.

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(dd)     Compliance with OFAC . None of the Company, any of its subsidiaries or, to the knowledge of the Company, any director, officer, agent, employee or affiliate of the Company or any of its subsidiaries is currently subject to any U.S. sanctions administered by the Office of Foreign Assets Control of the U.S. Department of the Treasury (“OFAC”) or the U.S. Department of State and including, without limitation, the designation as a “specially designated national” or “blocked person”), the United Nations Security Council (“UNSC”), the European Union, Her Majesty’s Treasury (“HMT”), or other relevant sanctions authority (collectively, “Sanctions”), and none of the Company or any of its subsidiaries is located, organized or resident in a country or territory that is the subject or target of Sanctions, including, without limitation, Crimea, Cuba, Iran, North Korea and Syria (each, a “Sanctioned Country”); and the Company will not directly or indirectly use the proceeds of the offering of the Securities hereunder, or lend, contribute or otherwise make available such proceeds to any subsidiary, joint venture partner or other person or entity(i) to fund or facilitate any activities of or business with any person that, at the time of such funding or facilitation, is the subject or target of Sanctions, (ii) to fund or facilitate any activities of or business in any Sanctioned Country or (iii) in any other manner that will result in a violation by any person (including any person participating in the transaction, whether as underwriter, initial purchaser, advisor, investor or otherwise) of Sanctions.

(ee)     No Unlawful Payments . None of the Company, any of its subsidiaries or, to the knowledge of the Company, any director, officer, agent, employee or affiliate of the Company or any of its subsidiaries, has (i) used any corporate funds for any unlawful contribution, gift, entertainment or other unlawful expense relating to political activity; (ii) made or taken an act in furtherance of an offer, promise or authorization of any direct or indirect unlawful payment, bribe or other unlawful benefit to any foreign or domestic government official or employee, including of any government-owned or controlled entity or of a public international organization, or any person acting in an official capacity for or on behalf of any of the foregoing, or any political party or party official or candidate for political office; (iii) violated or is in violation of any provision of the Foreign Corrupt Practices Act of 1977, as amended, or any applicable law or regulation implementing the OECD Convention on Combating Bribery of Foreign Public Officials in International Business Transactions, or committed an offence under the Bribery Act 2010 of the United Kingdom, or any other applicable anti-bribery or anti-corruption law; or (iv) made, offered, agreed, requested or taken an act in furtherance of any unlawful bribe or other unlawful benefit, including, without limitation, any rebate, payoff, influence payment, kickback or other unlawful or improper payment or benefit. The Company and its subsidiaries have instituted and maintain policies and procedures designed to ensure, and which are reasonably expected to continue to ensure, compliance with all applicable anti-bribery and anti-corruption laws.

(ff)     Sarbanes-Oxley Act . There is and has been no failure on the part of the Company or any of the Company’s directors or officers, in their capacities as such, to comply with any provision of the Sarbanes-Oxley Act of 2002 and the rules and

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regulations promulgated in connection therewith (the “Sarbanes-Oxley Act”), including Section 402 related to loans and Sections 302 and 906 related to certifications.

(gg)     Status under the Securities Act . The Company is not an ineligible issuer and is a well-known seasoned issuer, in each case as defined under the Securities Act, in each case at the times specified in the Securities Act in connection with the offering of the Securities.

(hh)     Cybersecurity; Data Protection. Except as would not reasonably be expected to cause a Material Adverse Effect, (i) the Company and its subsidiaries’ information technology assets and equipment, computers, systems, networks, hardware, software, websites, applications, and databases (collectively, “ IT Systems ”) operate and perform as required in connection with the operation of the business of the Company and its subsidiaries as currently conducted, and, to the knowledge of the Company, are free and clear of all material bugs, errors, defects, Trojan horses, time bombs, malware and other corruptants; (ii) the Company and its subsidiaries have implemented and maintained commercially reasonable controls, policies, procedures, and safeguards designed to maintain and protect their material confidential information and the integrity, continuous operation, redundancy and security of their IT Systems and data (including all personal, personally identifiable, sensitive, confidential or regulated data (“Personal Data”)) used in connection with their businesses; and (iii) to the knowledge of the Company, there have been no breaches, violations, outages or unauthorized uses of or accesses to the Company and its subsidiaries’ IT Systems. The Company and its subsidiaries have implemented and maintained commercially reasonable controls, policies, procedures, and technological safeguards to maintain and protect their material confidential information and the integrity, continuous operation, redundancy and security of their IT Systems and data (including all personal, personally identifiable, sensitive, confidential or regulated data (“Personal Data”)) reasonably consistent with industry standards and practices, or as required by applicable regulatory standards. The Company and its subsidiaries are presently in material compliance with all applicable laws or statutes and all judgments, orders, rules and regulations of any court or arbitrator or governmental or regulatory authority, internal policies and contractual obligations relating to the privacy and security of IT Systems and Personal Data and to the protection of such IT Systems and Personal Data from unauthorized use, access, misappropriation or modification, except as would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

4.     Further Agreements of the Company . The Company covenants and agrees with each Underwriter that:

(a)     Filings with the Commission. The Company will (i) pay the registration fees for this offering within the time period required by Rule 456(b)1(i) under the Securities Act (without giving effect to the proviso therein) and in any event prior to the Closing Date and (ii) file the Prospectus in a form approved by the Underwriters with the Commission pursuant to Rule 424 under the Securities Act not later than the close of

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business on the second business day following the date of determination of the public offering price of the Securities or, if applicable, such earlier time as may be required by Rule 424(b) and Rule 430A, 430B or 430C under the Securities Act. The Company will file any Issuer Free Writing Prospectus (including the Term Sheet substantially in the form of Annex A hereto) to the extent required by Rule 433 under the Securities Act; and the Company will furnish copies of the Prospectus and each Issuer Free Writing Prospectus (to the extent not previously delivered) to the Underwriters in New York City prior to 10:00 A.M., New York City time, on the business day next succeeding the date of this Agreement in such quantities as the Representatives may reasonably request.

(b)     Delivery of Copies. The Company will deliver, without charge, to each Underwriter during the Prospectus Delivery Period (as defined below), as many copies of the Prospectus (including all amendments and supplements thereto and documents incorporated by reference therein) and each Issuer Free Writing Prospectus (if applicable) as the Representatives may reasonably request. As used herein, the term “Prospectus Delivery Period” means such period of time after the first date of the public offering of the Securities as in the opinion of counsel for the Underwriters a prospectus relating to the Securities is required by law to be delivered (or required to be delivered but for Rule 172 under the Securities Act) in connection with sales of the Securities by any Underwriter or dealer.

(c)     Amendments or Supplements; Issuer Free Writing Prospectuses . Before making, preparing, using, authorizing, approving, referring to or filing any Issuer Free Writing Prospectus, and before filing any amendment or supplement to the Registration Statement or the Prospectus, the Company will furnish to the Representatives and counsel for the Underwriters a copy of the proposed Issuer Free Writing Prospectus, amendment or supplement for review and will not make, prepare, use, authorize, approve, refer to or file any such Issuer Free Writing Prospectus or file any such proposed amendment or supplement to which the Representatives reasonably object.

(d)     Notice to the Representatives. The Company will advise the Representatives promptly, and confirm such advice in writing, (i) when any amendment to the Registration Statement has been filed or becomes effective; (ii) when any supplement to the Prospectus or any amendment to the Prospectus or any Issuer Free Writing Prospectus has been filed; (iii) of any request by the Commission for any amendment to the Registration Statement or any amendment or supplement to the Prospectus or the receipt of any comments from the Commission relating to the Registration Statement or any other request by the Commission for any additional information; (iv) of the issuance by the Commission or any other governmental or regulatory authority of any order suspending the effectiveness of the Registration Statement or preventing or suspending the use of any Preliminary Prospectus or the Prospectus or the initiation or threatening of any proceeding for that purpose or pursuant to Section 8A of the Securities Act; (v) of the occurrence of any event within the Prospectus Delivery Period as a result of which the Prospectus, the Time of Sale Information or any Issuer Free Writing Prospectus as then amended or supplemented

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would include any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances existing when the Prospectus, the Time of Sale Information or any such Issuer Free Writing Prospectus is delivered to a purchaser, not misleading; (vi) of the receipt by the Company of any notice of objection of the Commission to the use of the Registration Statement or any post-effective amendment thereto pursuant to Rule 401(g)(2) under the Securities Act and (vii) of the receipt by the Company of any notice with respect to any suspension of the qualification of the Securities for offer and sale in any jurisdiction or the initiation or threatening of any proceeding for such purpose; and the Company will use its reasonable best efforts to prevent the issuance of any such order suspending the effectiveness of the Registration Statement, preventing or suspending the use of any Preliminary Prospectus or the Prospectus or suspending any such qualification of the Securities and, if any such order is issued, will obtain as soon as possible the withdrawal thereof.

(e)     Time of Sale Information . If at any time prior to the Closing Date (i) any event shall occur or condition shall exist as a result of which the Time of Sale Information as then amended or supplemented would include any untrue statement of a material fact or omit to state any material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading or (ii) it is necessary to amend or supplement the Time of Sale Information to comply with law, the Company will immediately notify the Underwriters thereof and forthwith prepare and, subject to paragraph (c) above, file with the Commission (to the extent required) and furnish to the Underwriters and to such dealers as the Representatives may designate, such amendments or supplements to the Time of Sale Information as may be necessary so that the statements in the Time of Sale Information as so amended or supplemented will not, in the light of the circumstances under which they were made, be misleading or so that the Time of Sale Information will comply with law.

(f)     Ongoing Compliance. If during the Prospectus Delivery Period (i) any event shall occur or condition shall exist as a result of which the Prospectus as then amended or supplemented would include any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances existing when the Prospectus is delivered to a purchaser, not misleading or (ii) it is necessary to amend or supplement the Prospectus to comply with law, the Company will immediately notify the Underwriters thereof and forthwith prepare and, subject to paragraph (c) above, file with the Commission and furnish to the Underwriters and to such dealers as the Representatives may designate, such amendments or supplements to the Prospectus as may be necessary so that the statements in the Prospectus as so amended or supplemented will not, in the light of the circumstances existing when the Prospectus is delivered to a purchaser, be misleading or so that the Prospectus will comply with law.

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(g)     Blue Sky Compliance. The Company will qualify the Securities for offer and sale under the securities or Blue Sky laws of such jurisdictions as the Representatives shall reasonably request and will continue such qualifications in effect so long as required for distribution of the Securities; provided that the Company shall not be required to (i) qualify as a foreign corporation or other entity or as a dealer in securities in any such jurisdiction where it would not otherwise be required to so qualify, (ii) file any general consent to service of process in any such jurisdiction or (iii) subject itself to taxation in any such jurisdiction if it is not otherwise so subject.

(h)     Earning Statement. The Company will make generally available to its security holders and the Representatives as soon as practicable an earning statement that satisfies the provisions of Section 11(a) of the Securities Act and Rule 158 of the Commission promulgated thereunder covering a period of at least twelve months beginning with the first fiscal quarter of the Company occurring after the “effective date” (as defined in Rule 158) of the Registration Statement.

(i)     Clear Market. During the period from the date hereof through and including the Closing Date, the Company will not, without the prior written consent of the Representatives, offer, sell, contract to sell or otherwise dispose of any debt securities issued or guaranteed by the Company and having a tenor of more than one year.

(j)     Use of Proceeds. The Company will apply the net proceeds from the sale of the Securities as described in the Registration Statement, the Time of Sale Information and the Prospectus under the heading “Use of Proceeds”.

(k)     No Stabilization. The Company will not take, directly or indirectly, any action designed to or that would reasonably be expected to cause or result in any stabilization or manipulation of the price of the Securities.

(l)     Filing of Exchange Act Documents. The Company will file promptly all reports and any definitive proxy or information statements required to be filed by the Company with the Commission pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act during the Prospectus Delivery Period.

(m)     Record Retention . The Company will, pursuant to reasonable procedures developed in good faith, retain copies of each Issuer Free Writing Prospectus that is not filed with the Commission in accordance with Rule 433 under the Securities Act.

5.     Certain Agreements of the Underwriters . Each Underwriter hereby represents and agrees that:

(a)    It has not and will not use, authorize use of, refer to, or participate in the planning for use of, any “free writing prospectus”, as defined in Rule 405 under the Securities Act (which term includes use of any written information furnished to the Commission by the Company and not incorporated by reference into the Registration

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Statement and any press release issued by the Company) other than (i) a free writing prospectus that, solely as a result of use by such underwriter, would not trigger an obligation to file such free writing prospectus with the Commission pursuant to Rule 433, (ii) any Issuer Free Writing Prospectus listed on Schedule 3 hereto or prepared pursuant to Section 3(c) or Section 4(c) above (including any electronic road show), or (iii) any free writing prospectus prepared by such underwriter and approved by the Company in advance in writing (each such free writing prospectus referred to in clauses (i) or (iii), an “Underwriter Free Writing Prospectus.”)

(b)    Notwithstanding the foregoing the Underwriters may use a term sheet substantially in the form of Annex A hereto without the consent of the Company.

(c)    It is not subject to any pending proceeding under Section 8A of the Securities Act with respect to the offering (and will promptly notify the Company if any such proceeding against it is initiated during the Prospectus Delivery Period).

6.     Conditions of Underwriters’ Obligations . The obligation of each Underwriter to purchase Securities on the Closing Date as provided herein is subject to the performance by the Company of its covenants and other obligations hereunder and to the following additional conditions:

(a)     Registration Compliance; No Stop Order. If a post-effective amendment to the Registration Statement is required to be filed under the Securities Act, such post-effective amendment shall have become effective, and the Representatives shall have received notice thereof, not later than 5:00 P.M., New York City time, on the date of the Underwriting Agreement; no order suspending the effectiveness of the Registration Statement shall be in effect, and no proceeding for such purpose, pursuant to Rule 401(g)(2) or pursuant to Section 8A under the Securities Act shall be pending before or threatened by the Commission; the Prospectus and each Issuer Free Writing Prospectus shall have been timely filed with the Commission under the Securities Act (in the case of an Issuer Free Writing Prospectus, to the extent required by Rule 433 under the Securities Act) and in accordance with Section 4(a) hereof; and all requests by the Commission for additional information shall have been complied with to the reasonable satisfaction of the Representatives.

(b)     Representations and Warranties. The representations and warranties of the Company contained herein shall be true and correct on the date hereof and on and as of the Closing Date; and the statements of the Company and its officers made in any certificates delivered pursuant to this Agreement shall be true and correct on and as of the Closing Date.

(c)     No Downgrade. Subsequent to the earlier of (A) the Time of Sale and (B) the execution and delivery of this Agreement, (i) no downgrading shall have occurred in the rating accorded the Securities or any other debt securities or preferred stock issued or guaranteed by the Company or any of its subsidiaries by any “nationally recognized

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statistical rating organization”, as such term is defined under Section 3(a)(62) under the Exchange Act and (ii) no such organization shall have publicly announced that it has under surveillance or review, or has changed its outlook with respect to, its rating of the Securities or of any other debt securities or preferred stock issued or guaranteed by the Company or any of its subsidiaries (other than an announcement with positive implications of a possible upgrading).

(d)     No Material Adverse Change. No event or condition of a type described in Section 3(f) hereof shall have occurred or shall exist, which event or condition is not described in the Time of Sale Information (excluding any amendment or supplement thereto) and the Prospectus (excluding any amendment or supplement thereto) and the effect of which in the judgment of the Representatives makes it impracticable or inadvisable to proceed with the offering, sale or delivery of the Securities on the terms and in the manner contemplated by this Agreement, the Time of Sale Information and the Prospectus.

(e)     Officer’s Certificate. The Representatives shall have received on and as of the Closing Date a certificate of an executive officer of the Company who has specific knowledge of the Company’s financial matters and is satisfactory to the Representatives (i) confirming that such officer has carefully reviewed the Registration Statement, the Time of Sale Information and the Prospectus and, to the knowledge of such officer, the representations set forth in Sections 3(a) and 3(b) hereof are true and correct, (ii) confirming that the other representations and warranties of the Company in this Agreement are true and correct and that the Company has complied with all agreements and satisfied all conditions on its part to be performed or satisfied hereunder at or prior to the Closing Date and (iii) to the effect set forth in paragraphs (a), (c) and (d) above.

(f)     Comfort Letters. On the date of this Agreement and on the Closing Date, Deloitte & Touche LLP shall have furnished to the Representatives, at the request of the Company, letters, dated the respective dates of delivery thereof and addressed to the Underwriters, in form and substance reasonably satisfactory to the Representatives, containing statements and information of the type customarily included in accountants’ “comfort letters” to underwriters with respect to the financial statements and certain financial information contained or incorporated by reference in the Registration Statement, the Time of Sale Information and the Prospectus; provided that the letter delivered on the Closing Date shall use a “cut-off” date no more than three business days prior to the Closing Date.

(g)     Opinion and Negative Assurance Letter of Counsel for the Company. Sidley Austin LLP, counsel for the Company, shall have furnished to the Representatives, at the request of the Company, a written opinion and negative assurance letter, dated the Closing Date and addressed to the Underwriters, to the effect set forth in Annex B hereto.

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(h)     Opinion and Negative Assurance Letter of Counsel for the Underwriters. The Representatives shall have received on and as of the Closing Date an opinion and negative assurance letter of Davis Polk & Wardwell LLP, counsel for the Underwriters, with respect to such matters as the Representatives may reasonably request, and such counsel shall have received such documents and information as they may reasonably request to enable them to pass upon such matters.

(i)     No Legal Impediment to Issuance. No action shall have been taken and no statute, rule, regulation or order shall have been enacted, adopted or issued by any federal, state or foreign governmental or regulatory authority that would, as of the Closing Date, prevent the issuance or sale of the Securities; and no injunction or order of any federal, state or foreign court shall have been issued that would, as of the Closing Date, prevent the issuance or sale of the Securities.

(j)     Good Standing . The Representatives shall have received on and as of the Closing Date satisfactory evidence of the good standing of the Company and its significant subsidiaries in their respective jurisdictions of organization and their good standing in such other jurisdictions as the Representatives may reasonably request, in each case in writing or any standard form of telecommunication from the appropriate governmental authorities of such jurisdictions.

(k)     Additional Documents. On or prior to the Closing Date, the Company shall have furnished to the Representatives such further certificates and documents as the Representatives may reasonably request.

All opinions, letters, certificates and evidence mentioned above or elsewhere in this Agreement shall be deemed to be in compliance with the provisions hereof only if they are in form and substance reasonably satisfactory to counsel for the Underwriters.

7.     Indemnification and Contribution .

(a)     Indemnification of the Underwriters. The Company agrees to indemnify and hold harmless each Underwriter, its affiliates, directors and officers and each person, if any, who controls such Underwriter within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act, from and against any and all losses, claims, damages and liabilities (including, without limitation, legal fees and other expenses incurred in connection with any suit, action or proceeding or any claim asserted as such fees and expenses are incurred), joint or several, that arise out of, or are based upon, (i) any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement, or caused by any omission or alleged omission to state therein a material fact required to be stated therein or necessary in order to make the statements therein, not misleading, or (ii) any untrue statement or alleged untrue statement of a material fact contained in the Prospectus (or any amendment or supplement thereto), any Issuer Free Writing Prospectus or any Time of Sale Information, or caused by any omission or alleged omission to state therein a material

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fact necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading, in each case except insofar as such losses, claims, damages or liabilities arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with any information relating to any Underwriter furnished to the Company in writing by such Underwriter through the Representatives expressly for use therein which information is set forth in Section 7(b) below.

(b)     Indemnification of the Company . Each Underwriter agrees, severally and not jointly, to indemnify and hold harmless the Company, its directors, its officers who signed the Registration Statement and each person, if any, who controls the Company within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act to the same extent as the indemnity set forth in paragraph (a) above, but only with respect to any losses, claims, damages or liabilities that arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with any information relating to such Underwriter furnished to the Company in writing by such Underwriter through the Representatives expressly for use in the Registration Statement, the Prospectus (or any amendment or supplement thereto), any Issuer Free Writing Prospectus or any Time of Sale Information, it being understood and agreed that the only such information consists of the following: the third paragraph in the text under the caption “Underwriting (Conflicts of Interest)” in the Preliminary Prospectus and the Prospectus concerning terms of the offering, including the concession and reallowance to certain dealers by the Underwriters; the third and fourth sentences of the paragraph of text under the caption “Underwriting (Conflicts of Interest)—New Issue of Notes” in the Preliminary Prospectus and the Prospectus Supplement relating to market making by the Underwriters; and the paragraph of text under the caption “Underwriting (Conflicts of Interest)—Short Positions” in the Preliminary Prospectus and the Prospectus relating to over-allotment, stabilization and syndicate covering transactions by the Underwriters.

(c)     Notice and Procedures. If any suit, action, proceeding (including any governmental or regulatory investigation), claim or demand shall be brought or asserted against any person in respect of which indemnification may be sought pursuant to either paragraph (a) or (b) above, such person (the “Indemnified Person”) shall promptly notify the person against whom such indemnification may be sought (the “Indemnifying Person”) in writing; provided that the failure to notify the Indemnifying Person shall not relieve it from any liability that it may have under this Section 7 except to the extent that it has been materially prejudiced (through the forfeiture of substantive rights or defenses) by such failure; and provided , further , that the failure to notify the Indemnifying Person shall not relieve it from any liability that it may have to an Indemnified Person otherwise than under this Section 7. If any such proceeding shall be brought or asserted against an Indemnified Person and it shall have notified the Indemnifying Person thereof, the Indemnifying Person shall retain counsel reasonably satisfactory to the Indemnified Person (who shall not, without the consent of the Indemnified Person, be counsel to the Indemnifying Person) to represent the Indemnified Person and any others entitled to

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indemnification pursuant to this Section 7 that the Indemnifying Person may designate in such proceeding and shall pay the fees and expenses of such proceeding and shall pay the fees and expenses of counsel related to such proceeding as incurred. In any such proceeding, any Indemnified Person shall have the right to retain its own counsel, but the fees and expenses of such counsel shall be at the expense of such Indemnified Person unless (i) the Indemnifying Person and the Indemnified Person shall have mutually agreed to the contrary, (ii) the Indemnifying Person has failed within a reasonable time to retain counsel reasonably satisfactory to the Indemnified Person; (iii) the Indemnified Person shall have reasonably concluded that there may be legal defenses available to it that are different from or in addition to those available to the Indemnifying Person; or (iv) the named parties in any such proceeding (including any impleaded parties) include both the Indemnifying Person and the Indemnified Person and representation of both parties by the same counsel would be inappropriate due to actual or potential differing interests between them. It is understood and agreed that the Indemnifying Person shall not, in connection with any proceeding or related proceeding in the same jurisdiction, be liable for the fees and expenses of more than one separate firm (in addition to any local counsel) for all Indemnified Persons, and that all such fees and expenses shall be paid or reimbursed as they are incurred. Any such separate firm for any Underwriter, its affiliates, directors and officers and any control persons of such Underwriter shall be designated in writing by the Representatives and any such separate firm for the Company, its directors, its officers who signed the Registration Statement and any control persons of the Company shall be designated in writing by the Company. The Indemnifying Person shall not be liable for any settlement of any proceeding effected without its written consent, but if settled with such consent or if there be a final judgment for the plaintiff, the Indemnifying Person agrees to indemnify each Indemnified Person from and against any loss or liability by reason of such settlement or judgment. Notwithstanding the foregoing sentence, if at any time an Indemnified Person shall have requested that an Indemnifying Person reimburse the Indemnified Person for fees and expenses of counsel as contemplated by this paragraph, the Indemnifying Person shall be liable for any settlement of any proceeding effected without its written consent if (i) such settlement is entered into more than 30 days after receipt by the Indemnifying Person of such request and (ii) the Indemnifying Person shall not have reimbursed the Indemnified Person in accordance with such request prior to the date of such settlement. No Indemnifying Person shall, without the written consent of the Indemnified Person, effect any settlement of any pending or threatened proceeding in respect of which any Indemnified Person is or could have been a party and indemnification could have been sought hereunder by such Indemnified Person, unless such settlement (x) includes an unconditional release of such Indemnified Person, in form and substance reasonably satisfactory to such Indemnified Person, from all liability on claims that are the subject matter of such proceeding and (y) does not include any statement as to or any admission of fault, culpability or a failure to act by or on behalf of any Indemnified Person.

(d)     Contribution. If the indemnification provided for in paragraphs (a) and (b) above is unavailable to an Indemnified Person or insufficient in respect of any losses,

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claims, damages or liabilities referred to therein, then each Indemnifying Person under such paragraph, in lieu of indemnifying such Indemnified Person thereunder, shall contribute to the amount paid or payable by such Indemnified Person as a result of such losses, claims, damages or liabilities (i) in such proportion as is appropriate to reflect the relative benefits received by the Company on the one hand and the Underwriters on the other from the offering of the Securities or (ii) if the allocation provided by clause (i) is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) but also the relative fault of the Company on the one hand and the Underwriters on the other in connection with the statements or omissions that resulted in such losses, claims, damages or liabilities, as well as any other relevant equitable considerations. The relative benefits received by the Company on the one hand and the Underwriters on the other shall be deemed to be in the same respective proportions as the net proceeds (before deducting expenses) received by the Company from the sale of the Securities and the total underwriting discounts and commissions received by the Underwriters in connection therewith, in each case as set forth in the table on the cover of the Prospectus, bear to the aggregate offering price of the Securities. The relative fault of the Company on the one hand and the Underwriters on the other shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by the Company or by the Underwriters and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission.

(e)     Limitation on Liability. The Company and the Underwriters agree that it would not be just and equitable if contribution pursuant to this Section 7 were determined by pro rata allocation (even if the Underwriters were treated as one entity for such purpose) or by any other method of allocation that does not take account of the equitable considerations referred to in paragraph (d) above. The amount paid or payable by an Indemnified Person as a result of the losses, claims, damages and liabilities referred to in paragraph (d) above shall be deemed to include, subject to the limitations set forth above, any legal or other expenses incurred by such Indemnified Person in connection with any such action or claim. Notwithstanding the provisions of this Section 7, in no event shall an Underwriter be required to contribute any amount in excess of the amount by which the total underwriting discounts and commissions received by such Underwriter with respect to the offering of the Securities exceeds the amount of any damages that such Underwriter has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. The Underwriters’ obligations to contribute pursuant to this Section 7 are several in proportion to their respective purchase obligations hereunder and not joint.

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(f)     Non-Exclusive Remedies. The remedies provided for in this Section 7 are not exclusive and shall not limit any rights or remedies which may otherwise be available to any Indemnified Person at law or in equity.

8.     Termination . This Agreement may be terminated in the absolute discretion of the Representatives, by notice to the Company, if after the execution and delivery of this Agreement and prior to the Closing Date (i) trading generally shall have been suspended or materially limited on the New York Stock Exchange or the over-the-counter market; (ii) trading of any securities issued or guaranteed by the Company shall have been suspended on any exchange or in any over-the-counter market; (iii) a general moratorium on commercial banking activities shall have been declared by federal or New York State authorities; and (iv) there shall have occurred any outbreak or escalation of hostilities or any change in financial markets or any calamity or crisis, either within or outside the United States, that, in the judgment of the Representatives, is material and adverse and makes it impracticable or inadvisable to proceed with the offering, sale or delivery of the Securities on the terms and in the manner contemplated by this Agreement, the Time of Sale Information and the Prospectus.

9.     Defaulting Underwriter . (a) If, on the Closing Date, any Underwriter defaults on its obligation to purchase the Securities that it has agreed to purchase hereunder, the non-defaulting Underwriters may in their discretion arrange for the purchase of such Securities by other persons satisfactory to the Company on the terms contained in this Agreement. If, within 36 hours after any such default by any Underwriter, the non-defaulting Underwriters do not arrange for the purchase of such Securities, then the Company shall be entitled to a further period of 36 hours within which to procure other persons satisfactory to the non-defaulting Underwriters to purchase such Securities on such terms. If other persons become obligated or agree to purchase the Securities of a defaulting Underwriter, either the non-defaulting Underwriters or the Company may postpone the Closing Date for up to five full business days in order to effect any changes that in the opinion of counsel for the Company or counsel for the Underwriters may be necessary in the Registration Statement and the Prospectus or in any other document or arrangement, and the Company agrees to promptly prepare any amendment or supplement to the Registration Statement and the Prospectus that effects any such changes. As used in this Agreement, the term “Underwriter” includes, for all purposes of this Agreement unless the context otherwise requires, any person not listed in Schedule 1 hereto that, pursuant to this Section 9, purchases Securities that a defaulting Underwriter agreed but failed to purchase.

(b)    If, after giving effect to any arrangements for the purchase of the Securities of a defaulting Underwriter or Underwriters by the non-defaulting Underwriters and the Company as provided in paragraph (a) above, the aggregate principal amount of such Securities that remains unpurchased does not exceed ten percent (10%) of the aggregate principal amount of all the Securities, then the Company shall have the right to require each non-defaulting Underwriter to purchase the principal amount of Securities that such Underwriter agreed to purchase hereunder plus such Underwriter’s pro rata share (based

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on the principal amount of Securities that such Underwriter agreed to purchase hereunder) of the Securities of such defaulting Underwriter or Underwriters for which such arrangements have not been made.

(c)    If, after giving effect to any arrangements for the purchase of the Securities of a defaulting Underwriter or Underwriters by the non-defaulting Underwriters and the Company as provided in paragraph (a) above, the aggregate principal amount of such Securities that remains unpurchased exceeds ten percent (10%) of the aggregate principal amount of all the Securities, or if the Company shall not exercise the right described in paragraph (b) above, then this Agreement shall terminate without liability on the part of the non-defaulting Underwriters. Any termination of this Agreement pursuant to this Section 9 shall be without liability on the part of the Company, except that the Company will continue to be liable for the payment of expenses as set forth in Section 10 hereof and except that the provisions of Section 7 hereof shall not terminate and shall remain in effect.

(d)    Nothing contained herein shall relieve a defaulting Underwriter of any liability it may have to the Company or any non-defaulting Underwriter for damages caused by its default.

10.     Payment of Expenses . (a) Whether or not the transactions contemplated by this Agreement are consummated or this Agreement is terminated, the Company will pay or cause to be paid all costs and expenses incident to the performance of its obligations hereunder, including without limitation, (i) the costs incident to the authorization, issuance, sale, preparation and delivery of the Securities and any taxes payable in that connection; (ii) the costs incident to the preparation, printing and filing under the Securities Act of the Registration Statement, the Preliminary Prospectus, any Issuer Free Writing Prospectus, any Time of Sale Information and the Prospectus (including all exhibits, amendments and supplements thereto) and the distribution thereof; (iii) the costs of reproducing and distributing each of the Transaction Documents; (iv) the fees and expenses of the Company’s counsel and independent accountants; (v) the fees and expenses incurred in connection with the registration or qualification and determination of eligibility for investment of the Securities under the laws of such jurisdictions as the Representatives may designate and the preparation, printing and distribution of a Blue Sky Memorandum (including the related fees and expenses of counsel for the Underwriters); (vi) any fees charged by rating agencies for rating the Securities; (vii) the fees and expenses of the Trustee and any paying agent (including related fees and expenses of any counsel to such parties); (viii) all expenses and application fees incurred in connection with any filing with, and clearance of the offering by, the Financial Industry Regulatory Authority, Inc.; and (ix) all expenses incurred by the Company in connection with any “road show” presentation to potential investors.

(b)    If (i) this Agreement is terminated pursuant to Section 8, (ii) the Company for any reason fails to tender the Securities for delivery to the Underwriters or (iii) the Underwriters decline to purchase the Securities for any reason permitted under this Agreement, the Company agrees to reimburse the Underwriters for all out-of-pocket

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costs and expenses (including the fees and expenses of their counsel) reasonably incurred by the Underwriters in connection with this Agreement and the offering contemplated hereby.

11.     Persons Entitled to Benefit of Agreement . This Agreement shall inure to the benefit of and be binding upon the parties hereto and their respective successors and the officers and directors and any controlling persons referred to herein, and the affiliates of each Underwriter referred to in Section 7 hereof. Nothing in this Agreement is intended or shall be construed to give any other person any legal or equitable right, remedy or claim under or in respect of this Agreement or any provision contained herein. No purchaser of Securities from any Underwriter shall be deemed to be a successor merely by reason of such purchase.

12.     Survival . The respective indemnities, rights of contribution, representations, warranties and agreements of the Company and the Underwriters contained in this Agreement or made by or on behalf of the Company or the Underwriters pursuant to this Agreement or any certificate delivered pursuant hereto shall survive the delivery of and payment for the Securities and shall remain in full force and effect, regardless of any termination of this Agreement or any investigation made by or on behalf of the Company or the Underwriters.

13.     Certain Defined Terms . For purposes of this Agreement, (a) except where otherwise expressly provided, the term “affiliate” has the meaning set forth in Rule 405 under the Securities Act; (b) the term “business day” means any day other than a day on which banks are permitted or required to be closed in New York City; (c) the term “subsidiary” has the meaning set forth in Rule 405 under the Securities Act ; and (d) the term “significant subsidiary” has the meaning set forth in Rule 1-02 of Regulation S-X under the Exchange Act.

14.     Compliance with USA Patriot Act . In accordance with the requirements of the USA Patriot Act (Title III of Pub. L. 107-56 (signed into law October 26, 2001)), the Underwriters are required to obtain, verify and record information that identifies their respective clients, including the Company, which information may include the name and address of their respective clients, as well as other information that will allow the Underwriters to properly identify their respective clients in accordance with applicable laws.

15.      Recognition of the U.S. Special Resolution Regimes . (a) In the event that any Underwriter that is a Covered Entity becomes subject to a proceeding under a U.S. Special Resolution Regime, the transfer from such Underwriter of this Agreement, and any interest and obligation in or under this Agreement, will be effective to the same extent as the transfer would be effective under the U.S. Special Resolution Regime if this Agreement, and any such interest and obligation, were governed by the laws of the United States or a state of the United States.

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(b)    In the event that any Underwriter that is a Covered Entity or a BHC Act Affiliate of such Underwriter becomes subject to a proceeding under a U.S. Special Resolution Regime, Default Rights under this Agreement that may be exercised against such Underwriter are permitted to be exercised to no greater extent than such Default Rights could be exercised under the U.S. Special Resolution Regime if this Agreement were governed by the laws of the United States or a state of the United States.

As used in this Section 15:

“BHC Act Affiliate” has the meaning assigned to the term “affiliate” in, and shall be interpreted in accordance with, 12 U.S.C. § 1841(k);     

“Covered Entity” means any of the following:

(i)    a “covered entity” as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 252.82(b);

(ii)    a “covered bank” as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 47.3(b); or

(iii)     a “covered FSI” as that term is defined in, and interpreted in accordance with, 12 C.F.R. § 382.2(b);

“Default Right” has the meaning assigned to that term in, and shall be interpreted in accordance with, 12 C.F.R. §§ 252.81, 47.2 or 382.1 as applicable;

“U.S. Special Resolution Regime” means each of (i) the Federal Deposit Insurance Act and the regulations promulgated thereunder and (ii) Title II of the Dodd-Frank Wall Street Reform and Consumer Protection Act and the regulations promulgated thereunder.

16.     Miscellaneous . (a)  Authority of the Representatives. Any action by the Underwriters hereunder may be taken by the Representatives on behalf of the Underwriters, and any such action taken by the Representatives shall be binding upon the Underwriters.

(b)     Notices. All notices and other communications hereunder shall be in writing and shall be deemed to have been duly given if mailed or transmitted and confirmed by any standard form of telecommunication. Notices to the Underwriters shall be given to BofA Securities, Inc., 50 Rockefeller Plaza, NY1-050-12-02, New York, New York 10020, Facsimile: (646) 855-5958, Attention: High Grade Transaction Management/ Legal; J.P. Morgan Securities LLC, 383 Madison Avenue, New York, New York 10179, Attention: Investment Grade Syndicate Desk, Fax: (212) 834-6081; Wells Fargo Securities, LLC, 550 South Tryon Street – 5th Floor, Charlotte, North Carolina 28202, Attention: Transaction Management, Telephone: (704) 410-4792, Facsimile: (704) 410-0326. Notices to the Company shall be given to it at 1925 West Field Court,

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Suite 200, Lake Forest, Illinois 60045-4824 (fax: 803-216-7872); Attention: Denise R. Cade with a copy to Sidley Austin LLP , One South Dearborn, Chicago, Illinois 60603, fax: (312) 853-7036, Attention: Michael P. Heinz, Esq.

(c)     Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the State of New York.

(d)     Amendments or Waivers. No amendment or waiver of any provision of this Agreement, nor any consent or approval to any departure therefrom, shall in any event be effective unless the same shall be in writing and signed by the parties hereto.

(e)     Headings. The headings herein are included for convenience of reference only and are not intended to be part of, or to affect the meaning or interpretation of, this Agreement.

(f)     Counterparts . This Agreement may be signed in counterparts (which may include counterparts delivered by any standard form of telecommunication), each of which shall be an original and all of which together shall constitute one and the same instrument. The words “execution,” “signed,” “signature,” and words of like import in this Agreement or in any other certificate, agreement or document related to this Agreement shall include images of manually executed signatures transmitted by facsimile or other electronic format (including, without limitation, “pdf”, “tif” or “jpg”) and other electronic signatures (including, without limitation, DocuSign and AdobeSign). The use of electronic signatures and electronic records (including, without limitation, any contract or other record created, generated, sent, communicated, received, or stored by electronic means) shall be of the same legal effect, validity and enforceability as a manually executed signature or use of a paper-based record-keeping system to the fullest extent permitted by applicable law, including the Federal Electronic Signatures in Global and National Commerce Act, the New York State Electronic Signatures and Records Act and any other applicable law, including, without limitation, any state law based on the Uniform Electronic Transactions Act or the Uniform Commercial Code.

(g)      Submission to Jurisdiction . The Company hereby submits to the non-exclusive jurisdiction of the U.S. federal and New York state courts in the Borough of Manhattan in The City of New York in any suit or proceeding arising out of or relating to this Agreement or the transactions contemplated hereby. The Company waives any objection which it may now or hereafter have to the laying of venue of any such suit or proceeding in such courts. The Company agrees that final judgment in any such suit, action or proceeding brought in such court shall be conclusive and binding upon the Company and may be enforced in any court to the jurisdiction of which Company is subject by a suit upon such judgment.

(h)     Waiver of Jury Trial . Each of the parties hereto hereby waives any right to trial by jury in any suit or proceeding arising out of or relating to this Agreement.

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17.     Effectiveness of Agreement . This Agreement shall become effective as of the date first written above.

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If the foregoing is in accordance with your understanding, please indicate your acceptance of this Agreement by signing in the space provided below.

Schedule 1

Schedule 2

List of Significant Subsidiaries

1)    IDEX Health & Science LLC

2)    IDEX Europe GmbH

3)    FAST & Fluid Management B.V.

4)    Fluid Management, Inc.

5)    Viking Pump, Inc.

Schedule 3

Time of Sale Information

a. Preliminary Prospectus dated April 27, 2020

b. Issuer Free Writing Prospectuses included in the Time of Sale Information

Final Term Sheet dated April 27, 2020

Annex A

IDEX Corporation

Pricing Term Sheet

3.0% Senior Notes due 2030

April 27, 2020

This pricing term sheet supplements, and should be read in conjunction with, IDEX Corporation’s preliminary prospectus supplement dated April 27, 2020 (the “Preliminary Prospectus Supplement”) and accompanying prospectus dated April 27, 2020 and the documents incorporated and deemed to be incorporated by reference therein.

* Note: A securities rating is not a recommendation to buy, sell or hold securities and may be subject to revision or withdrawal at any time.

The issuer has filed a registration statement (including a prospectus) and Preliminary Prospectus Supplement with the SEC for the offering to which this communication relates. Before you invest, you should read the Preliminary Prospectus Supplement, the accompanying prospectus in that registration statement and the other documents the issuer has filed with the SEC for more complete information about the issuer and this offering. You may get these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov. Alternatively, the issuer, any underwriter or any dealer participating in the offering will arrange to send you the Preliminary Prospectus Supplement and the prospectus if you request it by calling BofA Securities, Inc. toll-free at (800) 294-1322, J.P. Morgan Securities LLC collect at (212) 834-4533, or Wells Fargo Securities, LLC toll-free at (800) 645-3751.

Any disclaimer or other notice that may appear below is not applicable to this communication and should be disregarded. Such disclaimer or notice was automatically generated as a result of this communication being sent by Bloomberg or another email system.

Annex B

Form of Opinion and Negative Assurance Letter of Counsel for the Company

Exhibit 4.2

THIRD SUPPLEMENTAL INDENTURE

among

IDEX CORPORATION,

as Issuer

and

WELLS FARGO BANK, NATIONAL ASSOCIATION,

as Trustee

Dated as of April 29, 2020

Supplemental to Indenture for Debt Securities

Dated as of December 6, 2010

3.0% Senior Notes due 2030

TABLE OF CONTENTS

EXHIBIT A. Form of Note

THIRD SUPPLEMENTAL INDENTURE, dated as of April 29, 2020 (this “ Third Supplemental Indenture ”), by and among IDEX CORPORATION, a Delaware corporation (the “ Company ”), and WELLS FARGO BANK, NATIONAL ASSOCIATION, as trustee (as defined in the Indenture, the “ Trustee ”), to the Indenture, dated as of December 6, 2010 (the “ Base Indenture ” and, as supplemented by this Third Supplemental Indenture, the “ Indenture ”), by and between the Company and the Trustee.

RECITALS:

WHEREAS, the Company has duly authorized the execution and delivery of the Base Indenture to provide for the issuance from time to time of the Company’s debentures, notes, or other evidences of indebtedness (as defined in the Indenture, the “ Securities ”), to be issued in one or more series;

WHEREAS, Section 8.01 of the Base Indenture permits the Company and the Trustee to enter into indentures supplemental to the Base Indenture to establish the form and terms of any series of Securities as provided by Sections 2.01 and 2.03 of the Base Indenture;

WHEREAS, the Company desires and has requested the Trustee to join with it in the execution and delivery of this Third Supplemental Indenture in order to establish and provide for the issuance by the Company of a new series of Securities designated as its 3.0% Senior Notes due 2030 (the “ Notes ”), on the terms set forth herein;

WHEREAS, the Company now wishes to issue Notes in an initial aggregate principal amount of $500,000,000;

WHEREAS, the conditions set forth in the Indenture for the execution and delivery of this Third Supplemental Indenture have been complied with; and

WHEREAS, all things necessary to make this Third Supplemental Indenture a valid agreement of the Company and the Trustee, in accordance with its terms, and a valid supplement to the Base Indenture have been done.

NOW, THEREFORE, THIS THIRD SUPPLEMENTAL INDENTURE WITNESSETH:

In consideration of the purchase and acceptance of the Notes by the Holders thereof, the Company mutually covenants and agrees with the Trustee, for the equal and ratable benefit of the Holders of the Notes, as follows:

ARTICLE 1

S COPE OF S UPPLEMENTAL I NDENTURE ; G ENERAL

Section 1.01 . Scope of Supplemental Indenture; General. This Third Supplemental Indenture supplements and, to the extent inconsistent therewith, replaces the provisions of the Base Indenture, to which provisions reference is hereby made.

The changes, modifications and supplements to the Base Indenture effected by this Third Supplemental Indenture shall be applicable only with respect to, and govern the terms of, the Notes (which shall be initially in the aggregate principal amount of $500,000,000) and shall not apply to any other Securities that have been or may be issued under the Indenture unless a supplemental indenture with respect to such other Securities specifically incorporates such changes, modifications and supplements. Pursuant to this Third Supplemental Indenture, there is hereby created and designated a series of Securities under the Indenture entitled “3.0% Senior Notes due 2030.” The Notes shall be in the form of Exhibit A hereto, the terms of which are incorporated herein by reference.

All Notes issued under this Third Supplemental Indenture shall vote and consent together on all matters as one class, including without limitation on waivers and amendments, and no Holder of Notes shall have the right to vote or consent as a separate class from other Holders on any matter except matters which affect such Holder only.

Section 1.02 . Terms of Notes. The information applicable to the Notes required pursuant to Section 2.03 of the Base Indenture is as follows:

(a) the title of the Notes shall be “3.0% Senior Notes due 2030”;

(b) not applicable;

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(c) the initial aggregate principal amount of the Notes shall be $500,000,000;

(d) the Notes shall be issuable in Dollars;

(e) principal shall be payable as set forth in the form of Note;

(f) the rate at which the Notes shall bear interest and interest payment and record dates shall be as set forth in the form of Note;

(g) the place where the principal of and any interest on the Notes shall be payable shall be as set forth in the Base Indenture;

(h) the Notes shall be subject to optional redemption as set forth in Article 6 below;

(i) not applicable;

(j) the Notes shall be issuable in minimum denominations of $2,000 and integral multiples of $1,000 above that amount;

(k) not applicable;

(l) payment of the principal and interest on the Notes shall be made in Dollars;

(m) not applicable;

(n) not applicable;

(o) the Notes may be defeased as set forth in Article 7 below;

(p) not applicable;

(q) the Notes shall be issuable as Global Securities;

(r) Wells Fargo Bank, National Association initially shall serve as the Trustee, paying agent, registrar and custodian with respect to the Notes;

(s) the events of default set forth in Article 5 below and the covenants set forth in Article 3 below shall be applicable to the Notes;

(t) not applicable;

(u) the Notes shall be senior debt securities; and

(v) not applicable.

ARTICLE 2

C ERTAIN D EFINITIONS

Section 2.01 . Certain Definitions. The following definitions shall apply to the Notes. Capitalized terms used but not defined herein have the meanings ascribed to such terms in the Base Indenture.

“ Attributable Debt ” with respect to a Sale and Leaseback Transaction with respect to any Principal Property, the lesser of: (a) the fair market value of such property (as determined by the Company’s Board of Directors in good faith); or (b) the present value of the total net amount of rent required to be paid under such lease during the remaining term thereof (including any period for which such lease has been extended and excluding any unexercised renewal or other extension options exercisable by the lessee, and excluding amounts on account of maintenance and repairs, services, taxes and similar charges and contingent rents), discounted at the rate of interest set forth or implicit in the terms of such lease (or, if not practicable to determine such rate, the weighted average interest rate per annum borne by the Notes) compounded semi-annually. In the case of any lease which is terminable by the lessee upon the payment of a penalty, such net amount shall be the lesser of the net amount determined assuming

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termination upon the first date such lease may be terminated (in which case the net amount shall also include the amount of the penalty, but no rent shall be considered as required to be paid under such lease subsequent to the first date upon which it may be so terminated) or the net amount determined assuming no such termination.

“ Capital Lease ” means any lease of any Principal Property that is or should be accounted for as a capital lease on the consolidated balance sheet of the Company and its Subsidiaries prepared in accordance with GAAP.

“ Capital Stock ” means and includes any and all shares, interests, participations or other equivalents (however designated) of ownership in a corporation or other Person.

“ Change of Control ” means the occurrence of any of the following:

(a) the direct or indirect sale, lease, transfer, conveyance or other disposition (other than by way of merger or consolidation), in one or more series of related transactions, of all or substantially all of the Company’s assets and its Subsidiaries’ assets, taken as a whole, to any person, other than the Company or one of the Company’s subsidiaries; provided, however, that none of the circumstances in this clause (a) shall be a Change of Control if the persons that beneficially own the Company’s Voting Stock immediately prior to the transaction own, directly or indirectly, shares with a majority of the total voting power of all outstanding voting securities of the surviving or transferee person that are entitled to vote generally in the election of that person’s board of directors, managers or trustees immediately after the transaction;

(b) the consummation of any transaction (including, without limitation, any merger or consolidation), the result of which is that any person becomes the beneficial owner, directly or indirectly, of more than 50% of the Company’s outstanding Voting Stock or other Voting Stock into which the Company’s Voting Stock is reclassified, consolidated, exchanged or changed, measured by voting power rather than number of shares;

(c) the Company consolidates with, or merges with or into, any person, or any person consolidates with, or merges with or into, the Company, in any such event pursuant to a transaction in which any of the Company’s outstanding Voting Stock or the Voting Stock of such other person is converted into or exchanged for cash, securities or other property, other than any such transaction where the shares of the Company’s Voting Stock outstanding immediately prior to such transaction constitute, or are converted into or exchanged for, a majority of the Voting Stock of the surviving person or any direct or indirect parent company of the surviving person immediately after giving effect to such transaction; or

(d) the adoption of a plan relating to the liquidation or dissolution of the Company.

As used in this definition, the term “person” has the meaning given thereto in Section 13(d)(3) of the Exchange Act. As used in this definition, the term “beneficial owner” has the meaning given thereto in Rules 13d-3 and 13d-5 of the Exchange Act.

“ Change of Control Offer ” has the meaning ascribed to such term in Section 3.01 of this Third Supplemental Indenture.

“ Change of Control Payment ” has the meaning ascribed to such term in Section 3.01 of this Third Supplemental Indenture.

“ Change of Control Payment Date ” has the meaning ascribed to such term in Section 3.01 of this Third Supplemental Indenture.

“ Change of Control Triggering Event ” means the occurrence of both a Change of Control and a Rating Event.

“ Comparable Treasury Issue ” means the United States Treasury security selected by the Quotation Agent that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the remaining term of the debt securities.

“ Comparable Treasury Price ” means, with respect to any date of redemption, (1) the average of three Reference Treasury Dealer Quotations for the date of redemption, after excluding the highest and lowest Reference Treasury Dealer Quotations or (2) if the Quotation Agent obtains fewer than four Reference Treasury Dealer Quotations, the average of all such Reference Treasury Dealer Quotations.

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“ Consolidated Net Tangible Assets ” means the aggregate amount of assets (less applicable reserves and other properly deductible items) after deducting therefrom (1) all current liabilities (excluding any Debt of less than 12 months from the date of the Company’s most recent consolidated balance sheet but which by its terms is renewable or extendable beyond 12 months from such date at the Company’s option) and (2) all goodwill, trade names, patents, unamortized debt discount and expense and any other like intangibles, all as set forth on the Company’s most recent consolidated balance sheet and determined in accordance with GAAP.

“ Debt ” means with respect to a Person all obligations of such Person for borrowed money and all such obligations of any other Person for borrowed money guaranteed by such Person.

“ DTC ” has the meaning ascribed to such term in Section 4.02 of this Third Supplemental Indenture.

“ Event of Default ” means any event specified as such in Section 5.01 of this Third Supplemental Indenture.

“ Exchange Act ” means the Securities Exchange Act of 1934, as amended.

“ Fitch ” means Fitch Ratings Ltd. and its successors.

“ Funded Debt ” means any Debt maturing by its terms more than one year from its date of issuance (notwithstanding that any portion of such Debt is included in current liabilities).

“ GAAP ” means generally accepted accounting principles as in effect from time to time in the United States.

“ Global Note ” has the meaning ascribed to such term in Section 4.01 of this Third Supplemental Indenture.

“ Global Note Holder ” has the meaning ascribed to such term in Section 4.02 of this Third Supplemental Indenture.

“ Investment Grade ” means a rating equal to or higher than BBB- (or the equivalent) by Fitch, Baa3 (or the equivalent) by Moody’s and BBB- (or the equivalent) by S&P, and the equivalent Investment Grade credit rating from any replacement Rating Agency or Rating Agencies selected by the Company.

“ Lien ” means any mortgage, pledge, security interest, lien, charge or other encumbrance.

“ Moody’s ” means Moody’s Investors Service, Inc., and its successors.

“ Notes ” has the meaning ascribed to it in the recitals of this Third Supplemental Indenture.

“ Permitted Liens ” means:

(a) Liens existing at the date of the indenture;

(b) Liens in favor of the Company or a Restricted Subsidiary;

(c) Liens on any property existing at the time of the acquisition thereof;

(d) Liens on any property of a Person or its subsidiaries existing at the time such Person is consolidated with or merged into the Company or a Restricted Subsidiary, or Liens on any property of a Person existing at the time such Person becomes a Restricted Subsidiary;

(e) Liens to secure all or part of the cost of acquisition (including Liens created as a result of an acquisition by way of Capital Lease), construction, development or improvement of the underlying property, or to secure Debt incurred to provide funds for any such purposes, provided, that the commitment of the creditor to extend the credit secured by any such Lien shall have been obtained not later than 12 months after the later of (A) the completion of the acquisition, construction, development or improvement of such property and (B) the placing in operation of such property or of such property as so constructed, developed or improved;

(f) Liens securing industrial revenue, pollution control or similar bonds; and

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(g) any extension, renewal or replacement (including successive extensions, renewals and replacements), in whole or in part, of any Lien referred to in any of clauses (a), (c), (d) or (e) that would not otherwise be permitted pursuant to any of clauses (a) through (f), to the extent that (A) the principal amount of Debt secured thereby and not otherwise permitted to be secured pursuant to any of clauses (a) through (f) does not exceed the principal amount of Debt, plus any premium or fee payable in connection with any such extension, renewal or replacement, so secured at the time of any such extension, renewal or replacement, except that where the Debt so secured at the time of any such extension, renewal or replacement was incurred for the sole purpose of financing a specific project; and (B) the property that is subject to the Lien serving as an extension, renewal or replacement is limited to some or all of the property that was subject to the Lien so extended, renewed or replaced.

“ Person ” means any individual, corporation, partnership, limited partnership, limited liability company, joint venture, association, joint stock company, trust, unincorporated organization or government or any agency or political subdivision thereof.

“ Principal Property ” means any manufacturing plant, warehouse, office building or parcel of real property, including fixtures but excluding leases and other contract rights which might otherwise be deemed real property, owned or leased by the Company or any of its Subsidiaries, whether owned or leased on the date of the Indenture or thereafter acquired, that has a gross book value (determined in accordance with GAAP) in excess of 2% of the Consolidated Net Tangible Assets of the Company and its consolidated subsidiaries. Any plant, warehouse, office building or parcel of real property or portion thereof which the Company’s Board of Directors determines in good faith is not of material importance to the business conducted by the Company and its subsidiaries taken as a whole shall not be a Principal Property.

“ Quotation Agent ” means one of the Reference Treasury Dealers appointed by the Company as Quotation Agent.

“ Rating Agencies ” means (1) each of Fitch, Moody’s and S&P; and (2) if any of Fitch, Moody’s or S&P ceases to rate the Notes or fails to make a rating of the Notes publicly available for reasons outside of the Company’s control, a “nationally recognized statistical rating organization” within the meaning of Rule 15c3-1 (c)(2)(vi)(F) under the Exchange Act selected by the Company as a replacement agency for Fitch, Moody’s or S&P, or all of them, as the case may be.

“ Rating Event ” means a decrease in the ratings of the Notes below Investment Grade by at least two of the three Rating Agencies on any date from the date that is 60 days prior to the date of the first public notice of an arrangement that could result in a Change of Control until the end of the 60-day period following the consummation of such Change of Control (which period shall be extended so long as the rating of the Notes is under publicly announced consideration for possible downgrade by any of the Rating Agencies).

“ Reference Treasury Dealer ” means any of (1) BofA Securities, Inc., J.P. Morgan Securities LLC and Wells Fargo Securities, LLC and their respective successors, unless any of them ceases to be a primary U.S. Government securities dealer in New York City (a “Primary Treasury Dealer”), in which case the Company shall substitute another Primary Treasury Dealer, and (2) at least two other Primary Treasury Dealers selected by the Company.

“ Reference Treasury Dealer Quotations ” means, with respect to each Reference Treasury Dealer and any date of redemption, the average, as determined by the Quotation Agent of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to the Quotation Agent by that Reference Treasury Dealer at 5:00 P.M., New York City time, on the third Business Day preceding that date of redemption.

“ Restricted Subsidiary ” means any Subsidiary of the Company which owns or leases Principal Property.

“ S&P ” means S&P Global Ratings and its successors.

“ Sale and Leaseback Transaction ” means any arrangement with any Person relating to property now owned or hereafter acquired whereby the Company or any Restricted Subsidiary transfers such property to another Person and the Company or the Restricted Subsidiary lease or rent it from such Person.

“ Subsidiary ” means any corporation, partnership or other legal entity (a) the accounts of which are consolidated with the Company’s in accordance with GAAP and (b) of which, in the case of a corporation, more than 50% of the outstanding voting stock is owned, directly or indirectly, by the Company or by one or more other subsidiaries, or by the Company and one or more other subsidiaries or, in the case of any partnership or other legal entity, more than 50% of the ordinary equity capital interests is, at the time, directly or indirectly owned or controlled by the Company or by one or more of the subsidiaries or by the Company and one or more of the subsidiaries.

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“ Treasury Rate ” means, with respect to any date of redemption, the rate per year equal to: (1) the yield, under the heading which represents the average for the immediately preceding week, appearing in the most recently published statistical release designated “H.15” or any successor publication which is published weekly by the Board of Governors of the Federal Reserve System and which establishes yields on actively traded United States Treasury securities adjusted to constant maturity, for the maturity corresponding to the applicable Comparable Treasury Issue; provided that, if no maturity is within three months before or after the remaining term of the Notes to be redeemed, yields for the two published maturities most closely corresponding to the applicable Comparable Treasury Issue shall be determined and the Treasury Rate shall be interpolated or extrapolated from those yields on a straight line basis, rounding to the nearest month; or (2) if such release (or any successor release) is not published during the week preceding the calculation date or does not contain such yields, the rate per year equal to the semi-annual equivalent yield to maturity of the applicable Comparable Treasury Issue, calculated using a price for the applicable Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price for that date of redemption. The Treasury Rate will be calculated on the third Business Day preceding the redemption date.

“ Voting Stock ” means, with respect to any specified “person” (as that term is used in Section 13(d)(3) of the Exchange Act) as of any date, the Capital Stock of such person that is at the time entitled to vote generally in the election of the board of directors of such person.

Section 2.02 . Rules of Construction. Unless the context otherwise requires or except as otherwise expressly provided, the term “interest” in this Third Supplemental Indenture shall be construed to include additional interest, if any.

ARTICLE 3

C OVENANTS

The following covenants shall apply in addition to the covenants set forth in the Indenture:

Section 3.01 . Change of Control Triggering Event.

(a) If a Change of Control Triggering Event occurs, unless the Company has exercised its option to redeem the Notes pursuant to Section 6.01 of this Third Supplemental Indenture, the Company shall be required to make an offer (a “ Change of Control Offer ”) to each Holder of the Notes to repurchase all or any part (equal to $2,000 or an integral multiple of $1,000 in excess thereof) of that Holder’s Notes on the terms set forth in the Notes. In a Change of Control Offer, the Company shall be required to offer payment in cash equal to 101% of the aggregate principal amount of Notes repurchased, plus accrued and unpaid interest, if any, on the Notes repurchased to, but not including, the repurchase date (a “ Change of Control Payment ”).

(b) Within 30 days following any Change of Control Triggering Event or, at the Company’s option, prior to any Change of Control, but after public announcement of the transaction that constitutes or may constitute the Change of Control, a notice shall be mailed or sent electronically pursuant to applicable DTC procedures to Holders of the Notes with a copy to the Trustee describing the transaction that constitutes or may constitute the Change of Control Triggering Event and offering to repurchase such Notes on the repurchase date specified in the applicable notice, which date shall be no earlier than 10 days and no later than 60 days from the date on which such notice is mailed or sent (a “ Change of Control Payment Date ”).

(c) The notice shall, if mailed or sent prior to the date of consummation of the Change of Control, state that the Change of Control Offer is conditioned on the Change of Control Triggering Event occurring prior to or on the applicable Change of Control Payment Date specified in the notice.

(d) On each Change of Control Payment Date, the Company shall, to the extent lawful:

(i) accept for payment all Notes or portions of Notes properly tendered pursuant to the applicable Change of Control Offer;

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(ii) deposit with the paying agent an amount equal to the Change of Control Payment in respect of all Notes or portions of Notes properly tendered pursuant to the applicable Change of Control Offer; and

(iii) deliver or cause to be delivered to the Trustee the Notes properly accepted together with an Officer’s Certificate stating the aggregate principal amount of Notes or portions of Notes being repurchased.

(e) The Company shall not be required to make a Change of Control Offer upon the occurrence of a Change of Control Triggering Event if a third party makes such an offer in the manner, at the times and otherwise in compliance with the requirements for an offer made by the Company, and the third party repurchases all Notes properly tendered and not withdrawn under its offer.

(f) The Company shall comply with the requirements of Rule 14e-1 under the Exchange Act, and any other securities laws and regulations thereunder to the extent those laws and regulations are applicable in connection with the repurchase of the Notes as a result of a Change of Control Triggering Event. To the extent that the provisions of any such securities laws or regulations conflict with the Change of Control Offer provisions of the Notes, the Company shall comply with those securities laws and regulations and shall not be deemed to have breached its obligations under the Change of Control Offer provisions of the Notes by virtue of any such conflict.

Section 3.02 . Limitations on Liens.

(a) The Company shall not, and shall not permit any Restricted Subsidiary to, directly or indirectly, create, assume or permit to exist, any Lien, other than Permitted Liens, on any Principal Property, or upon Capital Stock or Debt of any Restricted Subsidiary and owned by the Company or any Subsidiary, now or hereafter acquired, to secure Debt, without effectively providing concurrently that the Notes are secured equally and ratably with such Debt, for so long as such Debt shall be so secured.

(b) Notwithstanding the restrictions set forth in paragraph (a) in this Section 3.02, the Company and its Restricted Subsidiaries may, directly or indirectly, create, assume or permit to exist any Lien that would otherwise be subject to the restrictions set forth in paragraph (a) in this Section 3.02 without equally and ratably securing the Notes if, at the time of such creation, assumption or permission, after giving effect thereto and to the retirement of any Debt which is concurrently being retired, the aggregate principal amount of outstanding Debt secured by Liens which would otherwise be subject to such restrictions (not including Permitted Liens) plus all Attributable Debt of the Company and its Restricted Subsidiaries in respect of Sale and Leaseback Transactions with respect to any Principal Property (not including such transactions described under any of clauses (i) through (vii) in Section 3.03(a) of this Third Supplemental Indenture), does not exceed 15% of Consolidated Net Tangible Assets.

Section 3.03 . Limitations on Sale and Leaseback Transactions.

(a) The Company shall not, and shall not permit any Restricted Subsidiary to, enter into any Sale and Leaseback Transaction with respect to any Principal Property owned by the Company or such Restricted Subsidiary, unless:

(i) the Sale and Leaseback Transaction is solely with the Company or a Subsidiary;

(ii) the lease in such Sale and Leaseback Transaction is for a period not in excess of three years;

(iii) the lease in such Sale and Leaseback Transaction secures or relates to industrial revenue, pollution control or similar bonds;

(iv) the Sale and Leaseback Transaction is entered into prior to or within 12 months after the purchase or acquisition of the Principal Property which is the subject of such Sale and Leaseback Transaction;

(v) the Sale and Leaseback Transaction involving property of a Person existing at the time such Person is merged into or consolidated with the Company or a Subsidiary or at the time of a sale, lease or other disposition of the properties of a Person as an entirety or substantially as an entirety to the Company or a Subsidiary;

(vi) the proceeds of the Sale and Leaseback Transaction are at least equal to the fair value (as determined by the Company’s Board of Directors in good faith) of the Principal Property leased pursuant to such Sale and Leaseback Transaction, so long as within 180 days of the effective date of such Sale and Leaseback Transaction, the Company or such Restricted Subsidiary apply (or irrevocably commit to an escrow account for the purpose or purposes hereinafter mentioned) an amount equal to the greater of (A) net proceeds of such sale, and (B) the Attributable Debt of the Company and the Company’s Restricted Subsidiaries in respect of such Sale and Leaseback Transaction to either (x) the purchase of property which shall constitute

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a Principal Property having a fair value at least equal to the fair value of the Principal Property leased, or (y) the retirement or repayment (other than any mandatory retirement, mandatory prepayment or sinking fund payment or by payment at maturity) of any Funded Debt of the Company or a Restricted Subsidiary (other than Funded Debt that is subordinated to the Notes) or preferred stock of any Subsidiary (other than any such Debt owed to or preferred stock owned by the Company or any Subsidiary); provided, however, that in lieu of applying an amount equivalent to all or any part of such net proceeds to such retirement or repayment (or committing such an amount to an escrow account for such purpose), the Company or the Restricted Subsidiary may deliver to the Trustee outstanding Notes and thereby reduce the amount to be applied pursuant to (y) of this clause (vi) by an amount equivalent to the aggregate principal amount of the Notes so delivered;

(vii) the Sale and Leaseback Transaction involving the extension, renewal or replacement (or successive extensions, renewals or replacements) in whole or in part of a lease pursuant to a Sale and Leaseback Transaction referred to in clauses (i) through (vi), inclusive, in this Section 3.03; provided, however, that such lease extension, renewal or replacement shall be limited to all or any part of the same property leased under the lease so extended, renewed or replaced (plus improvements to such property); or

(viii) the Attributable Debt of the Company and its Restricted Subsidiaries in respect of such Sale and Leaseback Transaction and all other Sale and Leaseback Transactions with respect to any Principal Property (not including any Sale and Leaseback Transactions described under any of clauses (i) through (vii) of this Section 3.03), plus the aggregate principal amount of outstanding Debt secured by Liens upon Principal Properties or Capital Stock or Debt of any Restricted Subsidiary and owned by the Company or any Subsidiary then Outstanding (not including any such Debt secured by Permitted Liens) which do not secure such outstanding securities issued under the Indenture equally and ratably with (or on a basis that is prior to) the other Debt secured thereby, would not exceed 15% of Consolidated Net Tangible Assets.

Section 3.04 . Applicability of Covenants Contained in the Base Indenture. Each of the agreements and covenants of the Company contained in Article 3 of the Base Indenture shall apply to the Notes.

ARTICLE 4

T HE N OTES

Section 4.01 . Form of Notes. The Notes shall initially be issued in the form of one or more Global Securities substantially in the form of Exhibit A attached hereto (the “ Global Note ”).

Section 4.02 . Depositary. The Depositary for the Global Note shall initially be The Depository Trust Company (“ DTC ”) and the Global Note shall be deposited with, or on behalf of, the Trustee as custodian for DTC and registered in the name of DTC or a nominee of DTC (such nominee being referred to herein as the “ Global Note Holder ”).

ARTICLE 5

E VENTS OF D EFAULT

Section 5.01 . Events of Default. The following Events of Default shall apply to the Notes:

(a) default in the payment of any interest on any Note when it becomes due and payable, and continuance of such default for a period of 30 days (unless the entire amount of such payment is deposited by the Company with the Trustee or with a paying agent prior to the expiration of such period of 30 days);

(b) default in the payment of principal of or premium, if any, on any Note when due and payable;

(c) default in the performance or breach of any covenant or warranty of the Company in the Indenture (other than a covenant or warranty that has been included in the Indenture solely for the benefit of a series of debt securities other than the Notes), which default continues uncured for a period of 90 days after written notice to the Company by the Trustee or to the Company and the Trustee by the Holders of not less than 25% in principal amount of the outstanding Notes as provided in the Indenture;

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(d) a court having jurisdiction in the premises shall enter a decree or order for relief in respect of the Company in an involuntary case under any applicable bankruptcy, insolvency or other similar law now or hereafter in effect, or appointing a receiver, liquidator, assignee, custodian, trustee or sequestrator (or similar official) of the Company or for all or substantially all of its property and assets or ordering the winding up or liquidation of its affairs, and such decree or order shall remain unstayed and in effect for a period of 60 consecutive days;

(e) the Company shall commence a voluntary case under any applicable bankruptcy, insolvency or other similar law now or hereafter in effect, or consent to the entry of an order for relief in an involuntary case under any such law, or consent to the appointment of or taking possession by a receiver, liquidator, assignee, custodian, trustee or sequestrator (or similar official) of the Company or for all or substantially all of its property and assets, or make any general assignment for the benefit of creditors; or

(f) (i) a default occurs under any instrument under which there is outstanding, or by which there may be secured or evidenced, any indebtedness of the Company for money borrowed by the Company (other than non-recourse indebtedness) which results in acceleration of, or non-payment at maturity (after giving effect to any applicable grace period) of, such indebtedness in an amount exceeding $50,000,000, in which case the Company shall immediately give notice to the Trustee of such acceleration or non-payment and (ii) there shall have been a failure to cure such default or to discharge such defaulted indebtedness within ten days after notice thereof to the Company by the Trustee or to the Company and the Trustee by the Holders of at least 25% in aggregate principal amount of the Notes then Outstanding; provided, however, that no such Event of Default described in this paragraph (f) shall exist as long as the Company is contesting any such default or acceleration in good faith and by appropriate proceedings.

ARTICLE 6

R EDEMPTION

Section 6.01 . Optional Redemption.

(a) The Notes shall be redeemable, at the option of the Company, at any time prior to February 1, 2030 (three months prior to the maturity date) in whole or from time to time in part, at a redemption price equal to the greater of:

(i) 100% of the principal amount of the Notes to be redeemed; or

(ii) the sum of the present values of the remaining scheduled payments of principal and interest on the Notes to be redeemed (exclusive of interest accrued to the date of redemption) from the redemption date through the stated maturity of the Notes being redeemed, in each case discounted to the date of redemption on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate plus 40 basis points.

(b) The Notes shall be redeemable, at the option of the Company, at any time on or after February 1, 2030 (three months prior to the maturity date), in whole or in part, at a redemption price equal to 100% of the principal amount of the Notes to be redeemed plus accrued and unpaid interest on the Notes to be redeemed to, but excluding, the date of redemption.

In each of paragraphs (a) and (b) of this Section 6.01, the Company shall pay accrued and unpaid interest on the principal amount being redeemed to, but excluding, the date of redemption.

Section 6.02. Notice of Redemption; Partial Redemptions. The provisions of the first, third and fourth paragraphs of Section 12.02 of the Base Indenture shall be replaced with the following in respect of any optional redemption of the Notes:

“Notice of redemption to the Holders of Notes to be redeemed as a whole or in part at the option of the Issuer shall be given by mailing notice of such redemption by first class mail, postage prepaid, or sending electronically pursuant to applicable DTC procedures, at least 10 days and not more than 60 days prior to the date fixed for redemption to such Holders of Notes at their last addresses as they shall appear upon the Security register. Any notice which is given in the manner herein provided shall be conclusively presumed to have been duly given, whether or not the Holder receives the notice. Failure to give notice or any defect in the notice to the Holder of any Note designated for redemption as a whole or in part shall not affect the validity of the proceedings for the redemption of any other Security of such series.

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The election of the Issuer to redeem any Notes shall be set forth in an Officer’s Certificate which states that such election has been duly authorized by all requisite corporate action on the part of the Issuer delivered to the Trustee at least 5 days prior to the date notice of redemption is to be given to the Holders (unless a shorter notice shall be satisfactory to the Trustee). If the redemption price is not known at the time such notice is to be given, the actual redemption price, calculated as described in the terms of the Securities, will be set forth in an Officer’s Certificate of the Issuer delivered to the Trustee no later than two Business Days prior to the date fixed for redemption. The notice of redemption of Notes to be redeemed at the option of the Issuer shall be given (i) by the Issuer or (ii) upon Issuer Order delivered to the Trustee together with such notice of redemption at least 5 days prior to the date such notice of redemption is to be given to the Holders (unless a shorter notice shall be satisfactory to the Trustee), by the Trustee in the name and at the expense of the Issuer.

On or before 11:00 A.M., New York City time, of the redemption date specified in the notice of redemption given as provided in this Section, the Issuer will deposit with the Trustee or with one or more paying agents (or, if the Issuer is acting as its own paying agent, set aside, segregate and hold in trust as provided in Section 3.04) an amount of money sufficient to redeem on the redemption date all the Notes so called for redemption (other than those theretofore surrendered for conversion into Common Stock) at the appropriate redemption price, together with accrued interest to, but excluding, the date fixed for redemption. If any Note called for redemption is converted pursuant hereto, any money deposited with the Trustee or any paying agent or so segregated and held in trust for the redemption of such Note shall be paid to the Issuer upon the Issuer’s request, or, if then held by the Issuer, shall be discharged from such trust. The Issuer will deliver to the Trustee at least 15 days prior to the date fixed for redemption (unless a shorter time period shall be acceptable to the Trustee) an Officer’s Certificate (which need not comply with Section 11.05) stating the aggregate principal amount of Notes to be redeemed. In case of a redemption at the election of the Issuer prior to the expiration of any restriction on such redemption, the Issuer shall deliver to the Trustee, prior to the giving of any notice of redemption to Holders pursuant to this Section, an Officer’s Certificate stating that such restriction has been complied with.”

Section 6.03 . Applicability of Sections of the Base Indenture. The provisions of Article 12 of the Base Indenture in respect of the Notes shall apply to any optional redemption of the Notes except when such provisions conflict with the foregoing.

ARTICLE 7

D EFEASANCE

Section 7.01 . Defeasance. If the Company shall effect a defeasance of the Notes pursuant to Article 10 of the Base Indenture, the Company shall cease to have any obligation to comply with the covenants set forth in Article 3 hereof.

Section 7.02 . Amendment of Section  10.01(b)(iv) of the Base Indenture. Solely for the purposes of the Notes, Section 10.01(b)(iv) of the Base Indenture is hereby amended by replacing that section in its entirety with the following:

“the Issuer shall have delivered to the Trustee an Opinion of Counsel from a nationally recognized counsel acceptable to the Trustee or a private letter ruling issued by the United States Internal Revenue Service to the effect that the beneficial owners will not recognize income, gain or loss for United States Federal income tax purposes as a result of the Issuer’s exercise of its option under this Section 10.01(b) and will be subject to United States Federal income tax on the same amount and in the same manner and at the same times as would have been the case if such option had not been exercised;”

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ARTICLE 8

M ISCELLANEOUS

Section 8.01 . Ratification of Base Indenture. The Base Indenture, as supplemented by this Third Supplemental Indenture, is in all respects ratified and confirmed, and this Third Supplemental Indenture shall be deemed part of the Base Indenture in the manner and to the extent herein and therein provided.

Section 8.02 . Trustee Not Responsible for Recitals. The recitals contained herein shall be taken as the statements of the Company, and the Trustee assumes no responsibility for the correctness of the same. The Trustee shall not be responsible for determining whether any Change of Control Triggering Event has occurred and whether any Change of Control Offer with respect to the Notes is required. The Trustee shall not be responsible for monitoring the Company’s rating status or making any request upon any Rating Agency. In connection with any proposed exchange of a Global Security for a certificated Note, there shall be provided to the Trustee all information necessary to allow the Trustee to comply with any applicable tax reporting obligations, including without limitation any cost basis reporting obligations under Internal Revenue Code Section 6045. The Trustee may rely on information provided to it and shall have no responsibility to verify or ensure the accuracy of such information.

Section 8.03 . New York Law to Govern. The Indenture and the Notes shall be deemed to be a contract under the laws of the State of New York, and for all purposes shall be construed in accordance with the laws of such State, except as may otherwise be required by mandatory provisions of law.

Section 8.04 . Counterparts. This Third Supplemental Indenture may be executed in any number of counterparts, each of which shall be an original; but such counterparts shall together constitute but one and the same instrument. Signatures of the parties hereto transmitted by facsimile or PDF may be used in lieu of the originals and shall be deemed to be their original signatures for all purposes.

Section 8.05 . Effect of Headings. The Article and Section headings herein and the Table of Contents are for convenience only and shall not affect the construction hereof.

[Signature Page Follows]

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IN WITNESS WHEREOF, the parties hereto have caused this Third Supplemental Indenture to be duly executed as of the date first above written.

Exhibit A

[TO BE INSERTED ON GLOBAL SECURITES]

[FACE OF NOTE]

UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR SECURITIES IN DEFINITIVE REGISTERED FORM, THIS SECURITY MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO THE NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. UNLESS THIS SECURITY IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“ DTC ”), TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY SECURITY ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

IDEX CORPORATION

3.0% Senior Note due 2030

IDEX CORPORATION, a Delaware corporation (“ Company ”, which term includes any successor corporation), for value received promises to pay to CEDE & CO., or registered assigns, the principal sum of [ ], as revised by the Schedule of Increases and Decreases attached hereto, on May 1, 2030.

Interest Payment Dates: May 1 and November 1 (each, an “ Interest Payment Date ”), commencing on November 1, 2020.

Interest Record Dates: April 15 and October 15 (each, an “ Interest Record Date ”).

Initially, payment of the principal of and interest on this Note shall be made at the office or agency of the Trustee maintained for that purpose in Minneapolis, Minnesota, in such currency of the United States of America as at the time of payment is legal tender for payment of public and private debts; provided, however , for so long as the Notes are represented in global form by one or more Global Securities, all payments of principal of and interest shall be made by wire transfer of immediately available funds to the Depository or its nominee, as the case may be, as the registered owner of the Global Security representing such Notes.

Reference is made to the further provisions of this Note set forth on the reverse hereof, which will for all purposes have the same effect as if set forth at this place.

IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed.

This is one of the Notes of the series designated herein and referred to in the within-mentioned Indenture.

Dated: [ ]

[FORM OF REVERSE OF NOTE]

This Note is one of the duly authorized securities of the Company (herein called the “ Notes ”) issued and to be issued in one or more series under an Indenture dated as of December 6, 2010 (the “ Base Indenture ”), as amended by a Third Supplemental Indenture dated as of April 29, 2020 (the “ Third Supplemental Indenture ” and, together with the Base Indenture, the “ Indenture ”), between the Company and Wells Fargo Bank, National Association, as trustee (herein called the “ Trustee, ” which term includes any successor trustee under the Indenture with respect to the series of Notes represented hereby), to which Indenture and all indentures supplemental thereto reference is hereby made for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the Trustee and the Holders of the Notes and of the terms upon which the Notes are, and are to be, authenticated and delivered. This Note is a Global Note representing the Company’s 3.0% Senior Notes due 2030 in the aggregate principal amount of $[ ].

The amount of interest payable on any interest payment date shall be computed on the basis of a 360-day year consisting of twelve 30-day months. In the event that any date on which interest is payable on this Note is not a Business Day, then payment of interest payable on such date will be made on the next succeeding day that is a Business Day (and without any interest or other payment in respect of any such delay) with the same force and effect as if made on such interest payment date.

The Notes of this series are issuable only in fully registered form without coupons in minimum denominations of $2,000 and integral multiples of $1,000 above that amount.

The Notes shall be redeemable, at the option of the Company, at any time prior to February 1, 2030 (three months prior to the maturity date), in whole or from time to time in part, at a redemption price equal to the greater of: (i) 100% of the principal amount of the Notes to be redeemed or (ii) the sum of the present values of the remaining scheduled payments of principal and interest on the Notes to be redeemed (exclusive of interest accrued to the date of redemption) from the redemption date through the stated maturity of the Notes being redeemed, in each case discounted to the date of redemption on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate plus 40 basis points.

The Notes shall be redeemable, at the option of the Company, at any time on or after February 1, 2030 (three months prior to the maturity date), in whole or in part, at a redemption price equal to 100% of the principal amount of the Notes to be redeemed plus accrued and unpaid interest on the Notes to be redeemed to, but excluding, the date of redemption.

In each case, the Company shall pay accrued and unpaid interest on the principal amount being redeemed to the date of redemption.

“ Comparable Treasury Issue ” means the United States Treasury security selected by the Quotation Agent that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the remaining term of the debt securities.

“ Comparable Treasury Price ” means, with respect to any date of redemption, (1) the average of three Reference Treasury Dealer Quotations for the date of redemption, after excluding the highest and lowest Reference Treasury Dealer Quotations or (2) if the Quotation Agent obtains fewer than four Reference Treasury Dealer Quotations, the average of all such Reference Treasury Dealer Quotations.

“ Quotation Agent ” means one of the Reference Treasury Dealers appointed by the Company as Quotation Agent.

“ Reference Treasury Dealer ” means any of (1) BofA Securities, Inc., J.P. Morgan Securities LLC and Wells Fargo Securities, LLC and their respective successors, unless any of them ceases to be a primary U.S. Government securities dealer in New York City (a “Primary Treasury Dealer”), in which case the Company shall substitute another Primary Treasury Dealer, and (2) at least two other Primary Treasury Dealers selected by the Company.

“ Reference Treasury Dealer Quotations ” means, with respect to each Reference Treasury Dealer and any date of redemption, the average, as determined by the Quotation Agent of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to the Quotation Agent by that Reference Treasury Dealer at 5:00 P.M., New York City time, on the third Business Day preceding that date of redemption.

“ Treasury Rate ” means, with respect to any date of redemption, the rate per year equal to: (1) the yield, under the heading which represents the average for the immediately preceding week, appearing in the most recently published statistical release designated “H.15” or any successor publication which is published weekly by the Board of Governors of the Federal Reserve System and which establishes yields on actively traded United States Treasury securities adjusted to constant maturity, for the maturity corresponding to the applicable Comparable Treasury Issue; provided that, if no maturity is within three months before or after the remaining term of the Notes to be redeemed, yields for the two published maturities most closely corresponding to the applicable Comparable Treasury Issue shall be determined and the Treasury Rate shall be interpolated or extrapolated from those yields on a straight line basis, rounding to the nearest month; or (2) if such release (or any successor release) is not published during the week preceding the calculation date or does not contain such yields, the rate per year equal to the semi-annual equivalent yield to maturity of the applicable Comparable Treasury Issue, calculated using a price for the applicable Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price for that date of redemption. The Treasury Rate will be calculated on the third Business Day preceding the redemption date.

If a Change of Control Triggering Event occurs, unless the Company has exercised its option to redeem the Notes as described above, the Company shall be required to make an offer (a “ Change of Control Offer ”) to each Holder of the Notes to repurchase all or any part (equal to $2,000 or an integral multiple of $1,000 in excess thereof) of that Holder’s Notes on the terms set forth herein. In a Change of Control Offer, the Company shall be required to offer payment in cash equal to 101% of the aggregate principal amount of Notes repurchased, plus accrued and unpaid interest, if any, on the Notes repurchased to, but not including, the repurchase date (a “ Change of Control Payment ”).

Within 30 days following any Change of Control Triggering Event or, at the Company’s option, prior to any Change of Control, but after public announcement of the transaction that constitutes or may constitute the Change of Control, a notice shall be mailed or sent electronically pursuant to applicable DTC procedures to Holders of the Notes with a copy to the Trustee describing the transaction that constitutes or may constitute the Change of Control Triggering Event and offering to repurchase such Notes on the repurchase date specified in the applicable notice, which date shall be no earlier than 10 days and no later than 60 days from the date on which such notice is mailed or sent (a “ Change of Control Payment Date ”).

The notice shall, if mailed or sent prior to the date of consummation of the Change of Control, state that the Change of Control Offer is conditioned on the Change of Control Triggering Event occurring prior to or on the applicable Change of Control Payment Date specified in the notice.

On each Change of Control Payment Date, the Company shall, to the extent lawful: (i) accept for payment all Notes or portions of Notes properly tendered pursuant to the applicable Change of Control Offer; (ii) deposit with the paying agent an amount equal to the Change of Control Payment in respect of all Notes or portions of Notes properly tendered pursuant to the applicable Change of Control Offer; and (iii) deliver or cause to be delivered to the Trustee the Notes properly accepted together with an Officer’s Certificate stating the aggregate principal amount of Notes or portions of Notes being repurchased.

The Company shall not be required to make a Change of Control Offer upon the occurrence of a Change of Control Triggering Event if a third party makes such an offer in the manner, at the times and otherwise in compliance with the requirements for an offer made by the Company, and the third party repurchases all Notes properly tendered and not withdrawn under its offer.

The Company shall comply with the requirements of Rule 14e-1 under the Exchange Act, and any other securities laws and regulations thereunder to the extent those laws and regulations are applicable in connection with the repurchase of the Notes as a result of a Change of Control Triggering Event. To the extent that the provisions of any such securities laws or regulations conflict with the Change of Control Offer provisions of the Notes, the Company shall comply with those securities laws and regulations and shall not be deemed to have breached its obligations under the Change of Control Offer provisions of the Notes by virtue of any such conflict.

“ Change of Control ” means the occurrence of any of the following:

(a) the direct or indirect sale, lease, transfer, conveyance or other disposition (other than by way of merger or consolidation), in one or more series of related transactions, of all or substantially all of the Company’s assets and its Subsidiaries’ assets, taken as a whole, to any person, other than the Company or one of the Company’s subsidiaries; provided, however, that none of the circumstances in this clause (a) shall be a Change of Control if the persons that beneficially own the Company’s Voting Stock immediately prior to the transaction own, directly or indirectly, shares with a majority of the total voting power of all outstanding voting securities of the surviving or transferee person that are entitled to vote generally in the election of that person’s board of directors, managers or trustees immediately after the transaction;

(b) the consummation of any transaction (including, without limitation, any merger or consolidation), the result of which is that any person becomes the beneficial owner, directly or indirectly, of more than 50% of the Company’s outstanding Voting Stock or other Voting Stock into which the Company’s Voting Stock is reclassified, consolidated, exchanged or changed, measured by voting power rather than number of shares;

(c) the Company consolidates with, or merges with or into, any person, or any person consolidates with, or merges with or into, the Company, in any such event pursuant to a transaction in which any of the Company’s outstanding Voting Stock or the Voting Stock of such other person is converted into or exchanged for cash, securities or other property, other than any such transaction where the shares of the Company’s Voting Stock outstanding immediately prior to such transaction constitute, or are converted into or exchanged for, a majority of the Voting Stock of the surviving person or any direct or indirect parent company of the surviving person immediately after giving effect to such transaction; or

(d) the adoption of a plan relating to the liquidation or dissolution of the Company.

As used in this definition, the term “person” has the meaning given thereto in Section 13(d)(3) of the Exchange Act. As used in this definition, the term “beneficial owner” has the meaning given thereto in Rules 13d-3 and 13d-5 of the Exchange Act.

“ Change of Control Triggering Event ” means the occurrence of both a Change of Control and a Rating Event.

“ Fitch ” means Fitch Ratings Ltd. and its successors.

“ Investment Grade ” means a rating equal to or higher than BBB- (or the equivalent) by Fitch, Baa3 (or the equivalent) by Moody’s and BBB- (or the equivalent) by S&P, and the equivalent Investment Grade credit rating from any replacement Rating Agency or Rating Agencies selected by the Company.

“ Moody’s ” means Moody’s Investors Service, Inc., and its successors.

“ Rating Agencies ” means (1) each of Fitch, Moody’s and S&P; and (2) if any of Fitch, Moody’s or S&P ceases to rate the Notes or fails to make a rating of the Notes publicly available for reasons outside of the Company’s control, a “nationally recognized statistical rating organization” within the meaning of Rule 15c3-1(c)(2)(vi)(F) under the Exchange Act selected by the Company as a replacement agency for Fitch, Moody’s or S&P, or all of them, as the case may be.

“ Rating Event ” means a decrease in the ratings of the Notes below Investment Grade by at least two of the three Rating Agencies on any date from the date that is 60 days prior to the date of the first public notice of an arrangement that could result in a Change of Control until the end of the 60-day period following the consummation of such Change of Control (which period shall be extended so long as the rating of the Notes is under publicly announced consideration for possible downgrade by any of the Rating Agencies).

“ S&P ” means S&P Global Ratings and its successors.

“ Voting Stock ” means, with respect to any specified “person” (as that term is used in Section 13(d)(3) of the Exchange Act) as of any date, the Capital Stock of such person that is at the time entitled to vote generally in the election of the board of directors of such person.

The Notes are initially limited to $[ ] aggregate principal amount. The Company may from time to time, without notice to or the consent of the Holders of the Notes, create and issue additional Notes ranking equally with the Notes in all respects (or in all respects other than the payment of interest accruing prior to the issue date of such further Notes or except for the first payment of interest following the issue date of such further Notes). Such further Notes may be consolidated and form a single series with the Notes and have the same terms as to status, redemption or otherwise as the Notes; provided that the Notes and such further Notes must be fungible with each other for U.S. federal income tax purposes.

The Notes are not entitled to the benefit of any sinking fund.

The Indenture imposes certain limitations on the ability of the Company to, among other things, merge or consolidate with any other Person or sell, convey, transfer or lease all or substantially all of its assets to any Person, and requires that the Company comply with certain further covenants, such as Limitations on Liens and Limitations on Sale and Leaseback Transactions. All such covenants and limitations are subject to a number of important qualifications and exceptions.

The Indenture contains provisions for the defeasance at any time of (a) the entire indebtedness of the Company on this Note and (b) certain restrictive covenants and the related defaults and Events of Default, upon compliance by the Company with certain conditions set forth therein, which provisions apply to this Note.

If an Event of Default with respect to Notes of this series shall occur and be continuing, the principal of the Notes of this series may (subject to the conditions set forth in the Indenture) be declared due and payable in the manner and with the effect provided in the Indenture.

The Indenture contains provisions permitting, with certain exceptions therein provided, the Company and the Trustee, without the consent of any of the Holders of the outstanding Notes, to modify and amend the Indenture for the purpose of, among other things, curing any ambiguity or correcting or supplementing any provision contained in the Indenture which may be defective, mistaken or inconsistent with any other provision contained in the Indenture.

The Indenture also contains provisions permitting the Holders of a majority in aggregate principal amount of the outstanding Notes, on behalf of the Holders of all Notes, to waive any past default or Event of Default with respect to the Notes and its consequences, except a default in the payment of the principal of or interest on any of the Notes or in respect of a covenant or other provision which, under the terms of the Indenture, cannot be modified or amended without the consent of the Holder of each outstanding Note.

No reference herein to the Indenture and no provision of this Note or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of and interest on this Note at the times, place and rate, and in the currency, herein prescribed.

No recourse under or upon any obligation, covenant or agreement contained in the Indenture or any supplemental indenture, or in any Note, or because of any indebtedness evidenced thereby, shall be had against any incorporator, as such, or against any past, present or future stockholder, officer or director, as such, of the Company or of any successor, either directly or through the Company or any successor, under any rule of law, statute or constitutional provision or by the enforcement of any assessment or by any legal or equitable proceeding or otherwise, all such liability being expressly waived and released by the acceptance hereof and as part of the consideration for the issue hereof.

This Note shall be governed by and construed in accordance with the law of the State of New York.

All terms used in this Note which are defined in the Indenture shall have the meanings assigned to them in the Indenture.

[FORM OF ASSIGNMENT FORM]

I or we assign and transfer this Security to

(Print or type name, address and zip code of assignee or transferee)

(Insert Social Security or other identifying number of assignee or transferee)

and irrevocably appoints agent to transfer this Security on the books of the Company. The agent may substitute another to act for him.

SCHEDULE A

[TO BE ATTACHED TO GLOBAL NOTES]

SCHEDULE OF INCREASES AND DECREASES

The following increases and decreases to this Global Note have been made:

OPTION OF HOLDER TO ELECT PURCHASE

If you want to elect to have this Note purchased by the Company pursuant to a Change of Control Offer please sign below.

If you want to elect to have only part of the Note purchased by the Company pursuant to a Change of Control Offer, state the amount you elect to have purchased:

$_________________

Signature Guarantee*:                                                      

Exhibit 5.1

		SIDLEY AUSTIN LLP ONE SOUTH DEARBORN STREET CHICAGO, IL 60603 +1 312 853 7000 +1 312 853 7036 FAX   AMERICA • ASIA PACIFIC • EUROPE

April 29, 2020

IDEX Corporation

1925 West Field Court, Suite 200

Lake Forest, Illinois 60045

Re: Registration Statement on Form S-3

Ladies and Gentlemen:

We refer to the Registration Statement on Form S-3, File No. 333-237847 (the “ Registration Statement ”), filed by IDEX Corporation, a Delaware corporation (the “ Company ”), with the Securities and Exchange Commission under the Securities Act of 1933, as amended (the “ Securities Act ”), which Registration Statement became effective upon filing pursuant to Rule 462(e) under the Securities Act. Pursuant to the Registration Statement, the Company is issuing $500,000,000 aggregate principal amount of the Company’s 3.0% Senior Notes due 2030 (the “ Securities ”). The Securities are being issued under an Indenture, dated as of December 6, 2010 (the “ Base Indenture ”), as amended and supplemented by a Third Supplemental Indenture, dated as of April 29, 2020 (the “ Third Supplemental Indenture ;” the Base Indenture, as amended and supplemented by the Third Supplemental Indenture, is hereinafter called the “ Indenture ”), each between the Company and Wells Fargo Bank, National Association, as trustee (the “ Trustee ”). The Securities are to be sold by the Company pursuant to an Underwriting Agreement, dated as of April 27, 2020 (the “ Underwriting Agreement ”), among the Company and BofA Securities, Inc., J.P. Morgan Securities LLC and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein.

This opinion letter is being delivered in accordance with the requirements of Item 601(b)(5) of Regulation S-K under the Securities Act.

We have examined the Registration Statement, the Indenture, the Underwriting Agreement, the Securities in global form and the resolutions adopted by the board of directors of the Company and the pricing committee thereof established by such board relating to the Registration Statement, the Indenture, the Underwriting Agreement and the issuance of the Securities by the Company. We have also examined originals, or copies of originals certified to our satisfaction, of such agreements, documents, certificates and statements of the Company and other corporate documents and instruments, and have examined such questions of law, as we have considered relevant and necessary as a basis for this opinion letter. We have assumed the authenticity of all documents submitted to us as originals, the genuineness of all signatures, the legal capacity of all persons and the conformity with the original documents of any copies

Sidley Austin LLP is a limited liability partnership practicing in affiliation with other Sidley Austin partnerships.

IDEX Corporation

April 29, 2020

Page 2

thereof submitted to us for examination. As to facts relevant to the opinion expressed herein, we have relied without independent investigation or verification upon, and assumed the accuracy and completeness of, certificates, letters and oral and written statements and representations of public officials and officers and other representatives of the Company.

Based on and subject to the foregoing and the other limitations, qualifications and assumptions set forth herein, we are of the opinion that the Securities will constitute valid and binding obligations of the Company when the Securities are duly executed by a duly authorized officer of the Company and duly authenticated by the Trustee, all in accordance with the provisions of the Indenture, and delivered to the purchasers thereof against payment of the agreed consideration therefor in accordance with the Underwriting Agreement.

Our opinion is subject to bankruptcy, insolvency, reorganization, moratorium, fraudulent conveyance, fraudulent transfer and other similar laws relating to or affecting creditors’ rights generally and to general equitable principles (regardless of whether considered in a proceeding in equity or at law), including concepts of commercial reasonableness, good faith and fair dealing and the possible unavailability of specific performance or injunctive relief. Our opinion is also subject to (i) provisions of law which may require that a judgment for money damages rendered by a court in the United States of America be expressed only in United States dollars, (ii) requirements that a claim with respect to any Securities or other obligations that are denominated or payable other than in United States dollars (or a judgment denominated or payable other than in United States dollars in respect of such claim) be converted into United States dollars at a rate of exchange prevailing on a date determined pursuant to applicable law and (iii) governmental authority to limit, delay or prohibit the making of payments outside of the United States of America or in a foreign currency.

This opinion letter is limited to the General Corporation Law of the State of Delaware and the laws of the State of New York (excluding the securities laws of the State of New York). We express no opinion as to the laws, rules or regulations of any other jurisdiction, including, without limitation, the federal laws of the United States of America or any state securities or blue sky laws.

We hereby consent to the filing of this opinion letter as an exhibit to the Registration Statement and to all references to our Firm included in or made a part of the Registration Statement. In giving such consent, we do not thereby admit that we are in the category of persons whose consent is required under Section 7 of the Securities Act.