Enjoy clean, refreshing drinking water straight from the tap with The Vitapur Universal four-stage NSF certified reverse osmosis treatment system. By the time you fill your glass, the water you're drinking is simply pure and delicious. Installation is easy too, meaning it won't take long before you have a convenient, affordable, and environmentally friendly alternative to bottled water. This system is designed to filter water at the molecular level and is NSF 58 approved for the reduction of Arsenic, Barium, Cadmium, Chromium, Chromium, Copper, Cyst, Fluoride, Lead, Radium 226/228, Selenium, TDS, and Turbidity.