PENTAIR plc — Director's Dealing 2008

Oct 3, 2008

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PENTAIR INC (PNR)
CIK: 0000077360
Period of Report: 2008-10-01

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2008-10-01	Common Stock	S	231	$35	Disposed	146343.745	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	3789.878	Indirect

Footnotes

F1: The reported sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 7, 2008.