The Aquasana OptimH2O Reverse Osmosis Drinking Water System delivers the best drinking water available for optimal hydration. Now featuring an all metal faucet with a brushed nickel finish, OptimH2O is the first reverse osmosis system of its kind to pair the powerful filtration of reverse osmosis with high performance Claryum filtration, plus remineralization. Remove the most contaminants from your water, like fluoride, lead, arsenic, asbestos, chlorine and chloramines, while maintaining the benefits of healthy minerals other reverse osmosis systems simply remove. NSF Certified to remove over 95% of fluoride, over 97% of arsenic, chlorine and chloramines, and over 99% of lead, asbestos, and more. A one year remineralizer is included with every system to provide healthy amounts of calcium, magnesium and potassium for optimally alkaline, pH balanced drinking water.