Pack of 4: Whole House/Commercial Reverse Osmosis GAC Granular Coconut Shell Carbon Water Filter Cartridges 2.5" x 20"

20" x 2.5" 20,000 Gallons or 6 Month Lifetime GAC Coconut Shell Filter

20" x 2.5" Granular Activated Carbon Cartridge w/Polypropylene Sediment Filtration Pads at each end Premium Quality Coconut Shell Activated Carbon cartridge is often used for Reverse Osmosis prefiltration & many other filtration applications.

Carbon filtration is excellent for removal of Chlorine, Bad Taste, Odor & Color and can be effective for removal of many chemical contaminants. This cartridge fits in Heavy Duty 20" Housings

To keep your filter system operating efficiently, replace this cartridge as needed and on a regular basis. This can be 6-12 months for many residential applications. Before putting a new cartridge in service, pass 3-5 gallons of water through to waste to flush out carbon fines. Water flows from bottom to top with rubber gasket on top. Each cartridge is marked with an arrow to indicate flow path.