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- Culligan / Pentek SW-1 Filter Housing Wrench Information:
- Use the SW-1 wrench to loosen bottom of housing during cartridge replacement. Slide circular end over housing until a snug fit is achieved 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.
- The SW-1 makes changing water filters easy.
- The SW-1 spanner wrench can be used with Slim Line and 3G housings.
- The SW-1 wrench is approximately 4.25 Inches Wide. (Note: Width is slightly less at the notches.)

