PENTAIR plc — Director's Dealing 2003

Dec 30, 2003

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PENTAIR INC (PNR)
CIK: 0000077360
Period of Report: 2003-12-29

Reporting Person: AINSWORTH LOUIS L (Sr. Vice President, Secretary)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2003-12-29	Common Stock	G	500	—	Disposed	37099.251	Direct
2003-12-29	Common Stock	G	300	—	Acquired	1562.985	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock - ESOP	680.7155	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: The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.