The Pentek GAC20-BB fits most whole house filter housings that require a 20 inch filter including the following systems:
This double length filter also fits #20 Big Blue housings.
The Pentek GAC20-BB 20" Big Blue Granular Activated Carbon Filter Cartridge effectively reduces chlorine taste and odor and bad taste and odor from your drinking water. The GAC-20BB features a 20 micron post filter that captures suspended carbon fines before they exit the filter.
The Pentek GAC-20BB, GAC20BB Specifications:
Part number 155249-43.