Easy to install and maintain, the Watts Premier 5-stage reverse osmosis system is like having a bottled water plant at home. The five-stage system produces up to 50 gallons per day and comes with a three-gallon storage tank. With a high production membrane, it separates clean water from the rejected impurities down to 1/10,000 of a micron. The five-micron sediment filter reduces dirt, sand, silt, sediment and rust. The carbon block filter reduces chloramines, chlorine, taste and odors. A second carbon block pre-filter makes sure difficult-to-remove contaminates like chloramines are reduced in order to ensure maximum reduction capability and longevity of the RO membrane. The RO membrane then filters out impurities like lead, arsenic, chromium, uranium salinity, dissolved solids and a long list of other contaminants, providing the highest quality drinking water for your home. A final polishing filter makes sure the water is crisp and fresh when it comes time to be used. The system comes with everything you need in order to install, including our long reach dispensing faucet. NSF tested and certified, this reverse osmosis system lets users rest assured their drinking water is clean and safe.