Water Filter Wrench B
*Product Type: Water Filter Wrench
*Packaging Type: Carded
*For use with Ace Nos. 4158515 and Culligan US-550.
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* Use the SW-1 wrench to loosen bottom of housing during cartridge replacement. Slide circular end over housing until a snug fit and unscrew.  Do not use the SW-1 wrench to tighten the bottom of the housing. Only hand-tighten the bottom of the housing onto the cap to prevent cracking.