PENTAIR plc — Director's Dealing 2006

Mar 1, 2006

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PENTAIR INC (PNR)
CIK: 0000077360
Period of Report: 2006-02-27

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2006-02-27	Common Stock	F	257	$40.69	Disposed	119753.1	Direct
2006-03-01	Common Stock	A	203	—	Acquired	119956.1	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock - ESOP	1464.13	Indirect
Common Stock	3624.087	Indirect

Footnotes

F1: Shares surrendered to pay taxes applicable to vesting of restricted stock.

F2: Restricted stock granted pursuant to the Pentair, Inc. Omnibus Stock Incentive Plan. Shares remain subject to a vesting condition under the stock incentive plan.