Virtually unlimited premium water all day, every day. Our H2ORO400 exclusive RO drinking system demonstrates breakthrough Reverse Osmosis Technology. The H2ORO400 features a fully encapsulated 400 gallon per day membrane, 1:1 product to waste ratio for a very efficient operation. Ultra fast flow rate and tank recovery. The H2ORO400 is designed to produce worry-free Reverse Osmosis Water, with less waste. Our 400 gallons per day Thin Film Composite Membrane, produces high quality drinking water at a fast rate. It removes a vast assortment of water contaminants by filtering down to 0.001 Micron. With the H2ORO400 system you will never have to worry about purchasing bottled water again. This system will provide you and your family with the purest drinking water available on the market today.