Use for twisting off the canister or sump on many water filter housings, The Adjustable Strap Wrench can be used with many water filtration housings, The strap adjusts to the size of the water filter housing, Do not use the AquaPure 68900-34 Adjustable Strap Wrench to tighten the water filter housing sump, Overtightening the sump can cause damage to the o-rings and make re-opening the housing sump difficult, You should only hand tighten the housing sump, The AquaPure 68900-34 Adjustable Strap Wrench makes replacing water filters easy, SKU: CWD1670