Pentek SW-4 Water Filter Wrench. This wrench fits most standard Big Blue 10"x4.5" and 20"x4.5" housings, including American Plumber, Ametek, Ametek, US Filter, Culligan, Crystal Quest and others. Use this SW4 wrench to loosen the bottom part of the housing during filter replacement.
How to use Pentek SW-4 Filter Wrench.
Slide the opening over the filter housing, until a good fit has been achieved. Rotate the wrench until it grabs the edges on a housing. Push harder to loosen the canister.
Do NOT use the SW-4 wrench to secure the canister after filter has been replaced, doing so will damage the o-rings. Always only hand tighten the housing!
Can be used with #20 Big Blue canisters, Culligan Pentek HD-950, Ace Hardware 49561, Ametek Kleen-Plus HD-10-R50 BBS, American Plumber W10-PR / 152014 water filter housings, American Plumber W15-PR / 152016 housings, Pentek 150237, 150239, 150469 whole house filter housings.
Part Number: Pentek SW-4 144368.
Brand: Pentek SW-4, SW4 water filter wrench. Also known as AK10501 AK10500.
Inside diameter: 6"