The APEC 3 stage water filtration system delivers clean filtered water at an affordable price. This complete 3-stage water filter system is made from high Caliber components to offer long-lasting, reliable performance. The three premium quality filters lasts over 12 months for fewer filter change outs and high performance. This system provides a continuous on demand supply of quality filtered water directly to your tap. 1st stage: high-grade 10 inch high-capacity polypropylene sediment filter -removes dirt, particles, and rust. 100% pure polypropylene depth filter with exceptional dirt-holding capacity translates to longer life and fewer change-outs than existing string-wound or resin-bonded filters. 2nd stage: premium extruded carbon block 10 inch -gets rid of unpleasant chlorine, tastes, odors, cloudiness and colors. Also removes vocs and other common impurities from the water. 3rd stage: premium extruded carbon block 10 inch - further removes chlorine, tastes, odors, and other common impurities from the water to provide great filtered water.