Waterdrop - K6 Tankless Reverse Osmosis System, Extra WD-ALK16 Mineralize Water Filter - White
Features
Hot water on demand
Allows step-less temperature adjustment in the range of 104 degree Fahrenheit to 203 degree Fahrenheit, an ideal choice for cooking soup, making instant coffee, tea and oatmeal or other household tasks.
Five stage deep filtration
The 5-in-1 filter is built with an RO membrane, a carbon block, PP cotton and other filtration substances that can effectively filter out TDS, chromium, pfas, fluoride, arsenic, salt, heavy metals, nitrate, particles, chloride, and other harmful substances.
Highend smart display faucet
Includes a touch digital display faucet where the TDS level and filter condition is available at a glance. Allows temperature adjustment easily on the faucet, bringing a smart and convenient life experience.
Outstanding safety performance
The K6 system monitors the water purification process, includes a child lock and a water dispensing temperature indicator to avoid scalding risks and ensure safety. Built with a flowmeter, NTC and a heating overtime protection that prevents dry burning of water.
Temperature setting
After the system is installed for the first time and is flushed, please manually turn on the heating module for temperature setting, in a flushing status, the heating indicator is not available.
Specifications
- BrandWaterdropModel NumberWD-K6-ALK16Product NameK6 Tankless Reverse Osmosis System, Extra WD-ALK16 Mineralize Water FilterColorWhiteProduct Height18 inchesProduct Width7 inches
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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.

The first-to-market Reverse Osmosis system with heating function. Waterdrop K6 water filter system integrates water purification and heating, meets various temperature demands and breaks through a conventional under sink RO water purification mode; it has a high capacity of 600 GPD (gallons per day) and a high hot water flow rate of 0.4 gal/min (gallons per minute), meeting your demands for water purification and hot water.