PENTAIR plc — Director's Dealing 2005

Nov 2, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PENTAIR INC (PNR)
CIK: 0000077360
Period of Report: 2005-10-31

Reporting Person: Dempsey Jack J (Sr. VP, Operations/Technology)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2005-10-31	Common Stock	P	100	$31.68	Acquired	13127.736	Direct
2005-10-31	Common Stock	P	1700	$31.85	Acquired	14827.736	Direct
2005-10-31	Common Stock	P	1200	$32	Acquired	16027.736	Direct
2005-11-01	Common Stock	P	900	$32.44	Acquired	16927.736	Direct
2005-11-01	Common Stock	P	400	$32.45	Acquired	17327.736	Direct
2005-11-01	Common Stock	P	100	$32.49	Acquired	17427.736	Direct
2005-11-01	Common Stock	P	200	$32.5	Acquired	17627.736	Direct
2005-11-01	Common Stock	P	400	$32.56	Acquired	18027.736	Direct
2005-11-01	Common Stock	P	300	$32.61	Acquired	18327.736	Direct
2005-11-01	Common Stock	P	1000	$32.65	Acquired	19327.736	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	67	Indirect

Footnotes

F1: 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).