PENTAIR plc — Director's Dealing 2007

May 1, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PENTAIR INC (PNR)
CIK: 0000077360
Period of Report: 2007-05-01

Reporting Person: Dempsey Jack J (President, Filtration Division)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-05-01	Common Stock	P	5533	$32.05	Acquired	47332.257	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock - ESPP	347.846	Direct
Common Stock	67	Indirect

Footnotes

F1: End-of-period holdings include monthly purchase(s), since the reporting person's last filed Form, under the Pentair, Inc. Employee Stock Purchase and Bonus Plan (ESPP) in exempt transaction(s) pursuant to Rule 16b-3(c).