AF 1000 Carbon Block Filter Cartridge is a coconut shell activated carbon block filter In this filter when water passes through the carbon media contaminants and unpleasant odor taste from water get removed before it ends up inside your glass The construction of the cartridge allows water to enter at one end and pass through the entire length of the carbon bed before exiting the other end of the cartridge Features . Perfect solution for household of any size where improving the quality of water is the primary objective. Uniform and solid media structures High chemical absorption capacity. Premium quality parts FDA compliant materials are used Specifications . Filter Capacity 800 gallons. Weight 2 lbs