Exhibit 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-184150, 333-184151 and 333-184152 on Form S-8 and Registration Statement No. 333-231828 on Form S-3 of our reports dated February 25, 2020, relating to the consolidated financial statements of Pentair plc and subsidiaries and the effectiveness of Pentair plc and subsidiaries’ internal control over financial reporting, appearing in the Annual Report on Form 10-K of Pentair plc and subsidiaries for the year ended December 31, 2019.

/s/ Deloitte & Touche LLP

Minneapolis, Minnesota

February 25, 2020