Waterdrop D6 Reverse Osmosis Water Filter, 600 GPD Under Sink Reverse Osmosis System, Reduce PFAS, 2:1 Pure to Drain, Tankless RO Water Filter System, Smart LED Faucet, Easy Installation Extra Waterdrop Remineralization Filter 6-stage composite filter and effective filtration: Waterdrop D6 water reverse osmosis filter system adopts 6-stage filtration system. The filtration accuracy of reverse osmosis membrane is 0.0001μm. The 6-stage filter reduces pollutants from water, including TDS, PFAS, PFOS, PFOA, lead, chlorine, microplastics, salt, radioactive substances such as radium etc. 600 GPD and 2:1 low drain ratio: Waterdrop reverse osmosis water system is upgraded to have a flow rate of 600 GPD. With an innovative internal pump and a larger filter surface, you can fill a cup of water in 8 seconds. A low drain ratio of 2:1 means that dispensing 2 cups of pure water produces only 1 cup of wastewater. You can use the wastewater to mop the floor or wash the car. Smart designer faucet:The tankless reverse osmosis system comes with a smart designer faucet that has a high-end screen. The screen shows the real-time TDS level and the remaining life of the filter. It is waterproof, so you do not have to worry about electrical leakage.