PENTAIR plc — Director's Dealing 2006

Nov 1, 2006

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PENTAIR INC (PNR)
CIK: 0000077360
Period of Report: 2006-10-31

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2006-10-31	Common Stock	S	5000	$33	Disposed	110440.408	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock - ESOP	1565.9778	Indirect
Common Stock	3655.301	Indirect

Footnotes

F1: The reported sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 1, 2005.

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).