This 3-stage reverse osmosis system is equipped with a sleek, compact design. The first stage carbon block filter removes the sediments, chlorine, taste, and odor. The second stage is the heart of the reverse osmosis system, the 50 gallons per day reverse osmosis membrane. The thin-film, semi-permeable membrane reduces TDS (total dissolved solids), lead, chromium, cadmium, fluoride, barium, copper, selenium, radium 226/228, and turbidity. The third stage is a granular activated carbon (GAC) filter, which is a final water polishing filter. This unit is equipped with a 3-gallon storage tank and a chrome faucet.