DONALDSON Co INC — Director's Dealing 2007

May 3, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DONALDSON CO INC (DCI)
CIK: 0000029644
Period of Report: 2007-05-01

Reporting Person: COOK WILLIAM M (Chairman, President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-05-01	Common Stock	A	19.442	$35.61	Acquired	9466	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	4460	Indirect
Common Stock	38733	Indirect
Common Stock	3900	Indirect
Common Stock	281041	Direct

Footnotes

F1: Share total converted from the 401(k) Donaldson Stock Fund which has a unitized price.