PENTAIR plc — Director's Dealing 2007

May 2, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

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

Reporting Person: DURANT KAREN A (Sr Vice Pres. Finance/Analysis)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-05-01	Common Stock	M	12000	$17.47	Acquired	113326.267	Direct
2007-05-01	Common Stock	M	40000	$22.88	Acquired	153326.267	Direct
2007-05-01	Common Stock	M	12196	$26.7	Acquired	165522.267	Direct
2007-05-01	Common Stock	M	11500	$26.7	Acquired	177022.267	Direct
2007-05-01	Common Stock	S	700	$31.94	Disposed	176322.267	Direct
2007-05-01	Common Stock	S	8202	$31.95	Disposed	168120.267	Direct
2007-05-01	Common Stock	S	1300	$31.96	Disposed	166820.267	Direct
2007-05-01	Common Stock	S	5500	$31.97	Disposed	161320.267	Direct
2007-05-01	Common Stock	S	4000	$31.98	Disposed	157320.267	Direct
2007-05-01	Common Stock	S	13300	$31.99	Disposed	144020.267	Direct
2007-05-01	Common Stock	S	13500	$32	Disposed	130520.267	Direct
2007-05-01	Common Stock	S	6400	$32.01	Disposed	124120.267	Direct
2007-05-01	Common Stock	S	4500	$32.02	Disposed	119620.267	Direct
2007-05-01	Common Stock	S	2600	$32.03	Disposed	117020.267	Direct
2007-05-01	Common Stock	S	2200	$32.04	Disposed	114820.267	Direct
2007-05-01	Common Stock	S	2600	$32.05	Disposed	112220.267	Direct
2007-05-01	Common Stock	S	500	$32.06	Disposed	111720.267	Direct
2007-05-01	Common Stock	S	100	$32.07	Disposed	111620.267	Direct
2007-05-01	Common Stock	S	100	$32.08	Disposed	111520.267	Direct
2007-05-01	Common Stock	S	100	$32.09	Disposed	111420.267	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2007-05-01	Employee Stock Option (right to buy)	$17.47	M	12000	Disposed	2013-01-02	Common Stock (12000)	Direct
2007-05-01	Employee Stock Option (right to buy)	$22.88	M	40000	Disposed	2014-01-02	Common Stock (40000)	Direct
2007-05-01	Employee Stock Option (right to buy)	$26.7	M	11500	Disposed	2011-01-02	Common Stock (11500)	Direct
2007-05-01	Employee Stock Option (right to buy)	$26.7	M	12196	Disposed	2010-01-03	Common Stock (12196)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock - ESPP	3741.588	Direct
Common Stock - ESOP	6847.3829	Indirect
Common Stock	10448.729	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).