This is a complete water filter kit compatible to the Ameritek Alkaline RO Water Treatment System by IPW Industries Inc. 20M Sediment Filter cartridge removes sediment, dirt, and rust from the feed water. Granular Activated Carbon (GAC) Filter Cartridge for removal of chlorine, taste, and odor. Carbon Block Filter Cartridge for an additional layer of chlorine removal and 5 to 10 Micron sediment filtration. In-line GAC Filter for final polishing of taste and odor from water being delivered from the storage tank to the faucet. In-Line Mineral Cartridge to alkalize the water, raising pH, enhancing the flavor, and enriching water with natural minerals. Membrane not included.