We carry a Half Circle Wrench, universal to fit most standard water filter housings. This is a universal 1/2 circle water filter housing wrench that fits most Standard Filter Housings.
This particular half wrench as known as a "C" style open end that fits around most standard housings. It fits standard size and slimline water filter housings. The wrench has a 3-5/8" C-Style opening. Use for twisting off the water filter housing sumps.
With all the wrenches, it's important to note that you should not over-tighten your housings. Over-tightening the housings can damage to the O-rings and make re-opening the housing extremely difficult. You should only hand tighten the housings. The universal filter wrench makes replacing water filters simple.