LISLE 4-1/2" HD FILTER WRENCH, 1-1/2" BAND 4-1/2" HD Filter Wrench, 1-1/2" Stainless Steel Band Provides Secure Grip. Heavy Duty Design for Durability and Strength. Use with 1/2" square drive ratchet or breaker bar. Two sets of dimples have been added to create a non-slip surface on the band. Works on filters from 3-3/4" to 4-1/2".