Hydro Logic Evolution-RO High Flow RO System, 1200 GPD (HL31023)Evolution RO Achieve the highest flow rates from the Hydro Logic Evolution 1000, the most efficient RO system on the planet! The Evolution RO is capable of producing more than 1,200 GPD or 50 gallons per hour of pure water. Remove 95%+ of all parts per million from your tap water. Save more water by running 2: 1 waste to product water ratio; now includes 1: 1 ratio as an option (to save 50% of the waste water). The Hydro Logic Evolution has a simple