Waterdrop G3P600 Reverse Osmosis Water Filter, 600 GPD, Water Softener, Reduce TDS, Reduce Scale, Enhance the Flavor of Coffee and Tea, 2:1 Pure to Drain, Smart LED FaucetNSF/ANSI 42and 58 and 372 Certified, 600 GPD, 8-stage Filtration, Smart LED Faucet, Water Softener, Reduce TDS, Reduce Scale, Enhance the Flavor of Coffee and Tea trusted certifications . Waterdrop G3P600 reverse osmosis water filter system is certified against NSF/ANSI 58 for TDS reduction and NSF/ANSI 372 certified for lead-free material. Also it has been tested and certified against NSF 42 to reduce chlorine, bad taste and odor. The tankless reverse osmosis system is also certified by the Federal Communications Commission. Besides, it meets the EU Standards and UKCA Standards for safety. 600 GPD high capacity, 2:1 low drain ration. As an upgraded reverse osmosis system, the G3P600 reverse osmosis water filter system produces 600 gal. of filtered water per day. By its low drain ratio, this system can produce only 1 cup of waste water for every 2 cups of pure water produced. Furthermore, with a fast and stable water flow rate, this RO system fills a 8 oz. cup of water in 8 seconds, which is ideal for drinking and washing vegetables.