Waterdrop G3P800 Reverse Osmosis System, 800 GPD Fast Flow, NSF/ANSI 42 and 53 and 58 and 372 Certified, 3:1 Pure to Drain, Tankless Under Sink RO Water Filter System, LED Purifier, Smart Faucet Extra Waterdrop Remineralization Filter WD-MNR35, 1/4 in. Quick Connect Mineral Filter for Reverse Osmosis System, Restore Essential Minerals for RO System, RO Mineral Filter, Under Sink Water Filtration Extra WD-G3-CF Filter, Replacement for WD-G3-W, WD-G3P600 and WD-G3P800-W Reverse Osmosis System, 6-month LifetimeDrilling 2 holes for installation. One for RO faucet and the other for drain pipe connection. NSF/ANSI standard 42 and 53 and 58 and 372 certifiedThis tankless reverse osmosis system is certified by IAPMO RandT against NSF/ANSI 58 for reduction of TDS. Also it has been tested and certified against NSF 42 and 53 to reduce chlorine, bad taste, odor and so on. Besides, the system is certified by NSF/ANSI 372 for lead-free materials. 800 GPD high capacity, 3:1 pure to drain ratioThe Waterdrop G3P800 reverse osmosis system offers a higher water capacity (800 gallons per day), thereby meeting demands of a big family for pure water. Furthermore, by high water flow, it filters one cup of water in just 6s. By an advanced water dispensing technology, this tankless RO water filter system produces just a cup ofwastewater for every three cups of filtered water produced.