PENTAIR plc — Director's Dealing 2007

May 7, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PENTAIR INC (PNR)
CIK: 0000077360
Period of Report: 2007-05-03

Reporting Person: GLENN T MICHAEL (Director)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2007-05-03	Nonqualified Stock Option (right to buy)	$33.38	A	10000	Acquired	2017-05-03	Common Stock (10000)	Direct

Footnotes

F2: One-third of the stock options become exercisable on the first, second, and third anniversary of the grant.

F1: Non-qualified stock option granted under the Pentair, Inc. Outside Directors Non-Qualified Stock Option Plan.