Unfortunately, the Watts WGAC-20 is no longer available. However, the manufacturer recommends the Watts 20" Activated Carbon GAC Filter Cartridge WW as a more than suitable alternative.
The Watts 20" Activated Carbon GAC Filter Cartridge (WGAC-20) is a granular activated coconut carbon water filter replacement cartridge used to reduce the bad taste and odor of chlorine in whole house filtration systems as well as a variety of low-flow applications such as under sink, countertop, and pre/post-reverse osmosis filtration systems. This filter may also be used in some humidifying systems, recreational vehicle filtration systems, and food service applications.
The Watts WGAC-20 water filter features coconut shell granular activated carbon (GAC) technology for better water filtration.
This Watts 20" GAC filter is a compatible replacement water filter cartridge with similar 20" GAC filter brands including the Pentek GAC-20, Ametek GAC-20, Culligan GAC-20, Whirlpool, US Filter, Ace, American Plumber, Bruner, Plymouth, Pentair, and other name brands. It will fit all water filter housings which use GAC-20, GAC20, CGT-20, and any other 20" x 2 3/4" filter replacement cartridges.
Watts 20" Granular Activated Coconut Carbon Filter Specifications (WGAC-20):