PENTAIR plc — Director's Dealing 2005

Jul 20, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PENTAIR INC (PNR)
CIK: 0000077360
Period of Report: 2005-07-18

Reporting Person: CATHCART RICHARD J (Director, Vice Chairman)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2005-07-18	Common Stock	S	1300	$43.79	Disposed	131197	Direct
2005-07-18	Common Stock	S	1000	$43.7957	Disposed	130197	Direct
2005-07-18	Common Stock	S	200	$43.8	Disposed	129997	Direct
2005-07-18	Common Stock	S	500	$43.83	Disposed	129497	Direct
2005-07-18	Common Stock	S	700	$43.95	Disposed	128797	Direct
2005-07-18	Common Stock	S	900	$43.97	Disposed	127897	Direct
2005-07-18	Common Stock	S	200	$43.98	Disposed	127697	Direct
2005-07-18	Common Stock	S	200	$44	Disposed	127497	Direct
2005-07-18	Common Stock	S	1500	$44.18	Disposed	125997	Direct
2005-07-18	Common Stock	S	1000	$44.19	Disposed	124997	Direct
2005-07-18	Common Stock	S	200	$44.2	Disposed	124797	Direct
2005-07-18	Common Stock	S	300	$44.21	Disposed	124497	Direct
2005-07-18	Common Stock	S	700	$44.22	Disposed	123797	Direct
2005-07-18	Common Stock	S	700	$44.25	Disposed	123097	Direct
2005-07-18	Common Stock	S	600	$44.27	Disposed	122497	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1527.866	Indirect

Footnotes

F1: The reported sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 16, 2005.