Exhibit (24.1)

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that the undersigned, a Director of Ecolab Inc., a Delaware corporation, does hereby make, nominate and appoint each of DOUGLAS M. BAKER, MICHAEL C. MCCORMICK and TIMOTHY BEASTROM, signing singly, to be my attorney-in-fact, with full power and authority to sign his or her name to a Registration Statement on Form S-8 relating to the registration of 2,500,000 shares of Ecolab Inc. Common Stock, par value $1.00 per share, for the Ecolab Stock Purchase Plan, and any and all amendments thereto (including without limitation post-effective amendments to register or de-register shares), provided that the Registration Statement and any amendments thereto, in final form, be approved by said attorney-in-fact; and his or her name, when thus signed, shall have the same force and effect as though I had manually signed said document or documents.

IN WITNESS WHEREOF, I have hereunto affixed my signature this 2nd day of August, 2018. 

/s/Barbara J. Beck

Barbara J. Beck

/s/Leslie S. Biller

Leslie S. Biller

/s/Carl M. Casale

Carl M. Casale

/s/Stephen I. Chazen

Stephen I. Chazen

/s/Jeffrey M. Ettinger

Jeffrey M. Ettinger

/s/Arthur J. Higgins

Arthur J. Higgins

/s/Michael Larson

Michael Larson

/s/David W. MacLennan

David W. MacLennan

/s/Tracy B. McKibben

Tracy B. McKibben

/s/Victoria J. Reich

Victoria J. Reich

/s/Suzanne M. Vautrinot

Suzanne M. Vautrinot

/s/John J. Zillmer

John J. Zillmer