PENTAIR plc — Director's Dealing 2005

Feb 25, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PENTAIR INC (PNR)
CIK: 0000077360
Period of Report: 2005-02-23

Reporting Person: AINSWORTH LOUIS L (Sr. Vice President, Secretary)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2005-02-23	Common Stock	A	361	—	Acquired	103983.159	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	3180.006	Indirect

Footnotes

F1: Restricted stock granted pursuant to the Pentair, Inc. Omnibus Stock Incentive Plan. Shares remain subject to a vesting condition under the stock incentive plan.

F2: End-of-period holdings include shares acquired under a dividend reinvestment plan in exempt transaction not required to be reported pursuant to Section 16(a).