Waterdrop Reverse Osmosis Instant Hot Water RO Filter System, 600 GPD, 2271L, Tankless, 2:1 Pure to Drain, Under Sink, TDS Reduction, Smart LED Faucet, WD-KJ600/WD-K6 Extra WD-KJF Filter, Replacement for WD-KJ600 Reverse Osmosis Instant Hot Water Dispenser System, 12-month Lifetime First-to-market RO system with heating function. The KJ600/K6 instant hot water dispenser reverse osmosis system can dispense hot water to meet your different demands. Adjust the temperature as you wish in the range of 40-95°C. 5-stage deep filtration, can effectively reduce TDS, chromium, PFAS, fluoride, arsenic, salt, heavy metals, nitrate, particles, chloride and other harmful substances. First-to-market RO system with heating function. The KJ600/K6 reverse osmosis system integrates water purification and heating and breaks through a conventional under sink RO water purification mode. Hot water at desired temperature in seconds. The tankless reverse osmosis system KJ600/K6 allows you to adjust the temperature as you wish in the range of 40-95°C, which is an ideal choice for cooking soup, making instant coffee, tea and oatmeal or other household tasks. However, please note that external factors like weather and temperature of your cup may ultimately affect the temperature of water.