PENTAIR plc — Director's Dealing 2006

Feb 23, 2006

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PENTAIR INC (PNR)
CIK: 0000077360
Period of Report: 2006-02-21

Reporting Person: GROGAN BARBARA B (Director)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2006-02-21	Nonqualified Stock Option (right to buy)	$38.88	A	10000	Acquired	2016-02-21	Common Stock (10000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	9097	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.