PENTAIR plc — Director's Dealing 2006

Oct 4, 2006

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PENTAIR INC (PNR)
CIK: 0000077360
Period of Report: 2006-10-02

Reporting Person: Dempsey Jack J (President, Filtration Division)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2006-10-02	Common Stock	P	300	$26.96	Acquired	29918.187	Direct
2006-10-02	Common Stock	P	1400	$26.97	Acquired	31318.187	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock - ESPP	133.741	Direct
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).

F2: 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); and shares acquired pursuant to a dividend reinvestment feature of the ESPP.