Hydronix Filter Housing Wrench fits 4-1/2 Inch Housing (FW-3)

Filter Wrenches Filters eventually need to be changed. In an industrial system with large filters and housings, this can be difficult, as lids tend to get settled in place after a while. Use a tool like this 4-1/2"" Filter Wrench from Hydronix (FW-3) to loosen filter housing sumps when changing filters. This spanner wrench has four teeth and fits a wide range of filters from Hydronix, Pentek, Culligan, Ametek, American Plumber, and more!