Big Blue Cartridge 4.5" x 20" | Granular Activated Coconut Shell Carbon (GAC)

BIG BLUE 4.5 X 20" WATER FILTER/CARTRIDGE Coconut Shell Carbon GRANULAR ACTIVATED CARBON (GAC): This cartridge is filled with activated coconut shell carbon.  This 100% pure coconut carbon filter media is what we choose to use as our front line carbon filter media. It produces a smooth, crisp tasting water, whilst retaining a very high grade filtration process