X0202 4 2006-04-03 0000077360 PENTAIR INC PNR 0001189049 HOGAN RANDALL J 5500 WAYZATA BLVD. SUITE 800 GOLDEN VALLEY MN 55416-1261 1 1 0 0 Chairman, CEO Common Stock 2006-04-03 4 S 0 1700 40.95 D 364656 D Common Stock 2006-04-03 4 S 0 300 40.98 D 364356 D Common Stock 2006-04-03 4 S 0 1600 41 D 362756 D Common Stock 2006-04-03 4 S 0 400 41.01 D 362356 D Common Stock 2006-04-03 4 S 0 1500 41.02 D 360856 D Common Stock 2006-04-03 4 S 0 500 41.15 D 360356 D Common Stock 2006-04-03 4 S 0 3900 41.2 D 356456 D Common Stock 2006-04-03 4 S 0 100 41.21 D 356356 D Common Stock - ESOP 938.0693 I By ESOP Common Stock 16000 I By Spouse Trust Common Stock 99072 I By Trust The reported sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 5, 2004. Louis L. Ainsworth, Attorney-In-Fact 2006-04-04