Handle the toughest filtration challenges with Big Blue housings. This housing is designed to be used with 4.5" x 20" cartridges.
Available in several sizes, these multi-cartridge replacement housings feature reinforced polypropylene construction with chemical-resistance ideal for residential plumbing, commercial, and light industrial applications. Several cartridges are also available in GAC (granular activated charcoal), carbon block, pleated, and multi-depth polypropylene can help you solve virtually any filtration challenge. Designed to last with the highest quality FDA-Grade materials, this system is an affordable solution for your water filtration needs.