The Waterdrop KJ-600 is the first-to-market tankless reverse osmosis system with an instant hot water function, delivering both hot and cold purified water on demand. With adjustable temperatures from 104℉ to 203℉, it is ideal for coffee, tea, cooking, and daily use. Featuring 5-stage deep filtration with an RO membrane and carbon block, it effectively reduces TDS, PFAS, fluoride, heavy metals, salts, and other contaminants. The system provides 600 GPD fast flow with a 2:1 pure-to-drain ratio, saving water while ensuring efficiency. Its smart display faucet shows TDS levels, filter life, water temperature, and includes a child lock for safety, while built-in protections prevent overheating and ensure reliable performance.