UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No.    )

Filed by the Registrant  x                             Filed by a Party other than the Registrant  ¨

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¨ Preliminary Proxy Statement

¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

¨ Definitive Proxy Statement

x Definitive Additional Materials

¨ Soliciting Material Pursuant to §240.14a-12

Pentair plc

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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*** Exercise Your Right to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the

Shareholder Meeting to Be Held on May 5, 2015.

PENTAIR PLC

PENTAIR PLC

C/O BROADRIDGE

51 MERCEDES WAY

EDGEWOOD, NY 11717

Meeting Information
Meeting Type:	Annual General Meeting
For holders as of:	March 6, 2015
Date: May 5, 2015	Time: 8:00 AM Local Time

Location:	Four Seasons Hotel
	Hamilton Place, Park Lane
	London, United Kingdom
	W1J7DR

You are receiving this communication because you hold shares in the company named above.

This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side).

We encourage you to access and review all of the important information contained in the proxy materials before voting.

See the reverse side of this notice to obtain proxy materials and voting instructions.

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— Before You Vote —

How to Access the Proxy Materials

Proxy Materials Available to VIEW or RECEIVE:
1. Annual Report	2. Notice & Proxy Statement	3. Irish Statutory Accounts and Related Reports
How to View Online: Have the information that is printed in the box marked by the arrow (located on the following page) and visit: www.proxyvote.com.
How to Request and Receive a PAPER or E-MAIL Copy:
If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request:
1) BY INTERNET:         www.proxyvote.com
2) BY TELEPHONE:      1-800-579-1639
3) BY E-MAIL*:             sendmaterial@proxyvote.com
*  If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow (located on the following page) in the subject line.
Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before April 21, 2015 to facilitate timely delivery.

— How To Vote —

Please Choose One of the Following Voting Methods

Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow (located on the following page) available and follow the instructions.

Vote by Telephone: To vote by telephone, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow (located on the following page) available and follow the instructions.

Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.

Vote In Person: You are entitled to appoint a proxy or proxies to attend, speak and vote at the meeting on your behalf. This proxy does not have to be a shareholder. If you wish to appoint a proxy other than Randall J. Hogan, John L. Stauch and Angela D. Lageson, please contact the Corporate Secretary. At the meeting, you will need to request a ballot to vote your shares.

For directions to the meeting, visit www.fourseasons.com/london/destination/directions_and_maps/.

Unless you plan to attend the meeting, you must submit your instructions or return your proxy by noon, Eastern Standard Time, on May 4, 2015.

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Voting Items

The Board of Directors recommends you vote FOR the following director nominees.

1. Election of Directors

1a. Glynis A. Bryan

1b. Jerry W. Burris

1c. Carol Anthony (John) Davidson

1d. Jacques Esculier

1e. T. Michael Glenn

1f. David H.Y. Ho

1g. Randall J. Hogan

1h. David A. Jones

1i. Ronald L. Merriman

1j. William T. Monahan

1k. Billie Ida Williamson

The Board of Directors recommends you vote FOR proposals 2, 3, 4 and 5. Proposals 2 through 4 are ordinary resolutions. Proposal 5 is a special resolution.

2. To approve, by non-binding advisory vote, the compensation of the named executive officers.

3. To ratify, by non-binding advisory vote, the appointment of Deloitte & Touche LLP as the independent auditors of Pentair plc and to authorize, by binding vote, the Audit and Finance Committee of the Board of Directors to set the auditors’ remuneration.

4. To authorize holding the 2016 Annual General Meeting of shareholders of Pentair plc at a location outside of Ireland.

5. To authorize the price range at which Pentair plc can reissue shares it holds as treasury shares under Irish law (special resolution).

6. Such other business as may properly come before the meeting or any adjournment thereof.

M81593-P60140

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