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On October 6 and 7, Waterdrop Filter is discounting a range of water purification systems designed for different households, kitchens, and budgets. One of the standout deals is the Waterdrop KJ600 (K6) Instant Hot Reverse Osmosis System for $499 (was $799). Larger households can step up to under-sink models like Waterdrop’s high-capacity X16 or its G3P800 system.
For households concerned about local water quality, unpleasant tastes and odors, or contaminants such as lead and PFAS, Prime Big Deal Days offers a timely opportunity to rethink their home water setup.
Our Favorite Waterdrop Prime Day Deals
Waterdrop KJ600 (K6) Instant Hot Reverse Osmosis System
Photo: Amazon
This 600-GPD under-sink reverse osmosis system combines filtration and instant heating in one faucet, dispensing water from 104 to 203 degrees Fahrenheit. Its tankless design saves space, while the smart faucet dispenses filtered cold or hot water without a separate kettle or dispenser.
Waterdrop X16 Alkaline Mineral Reverse Osmosis System
Photo: Amazon
Built for large households and frequent use, the X16 delivers up to 1,600 gallons per day and uses an 11-stage reverse osmosis process before adding calcium and magnesium back to the filtered water. Its high flow rate, smart faucet, and tankless design are boons for families preparing meals, filling glasses, and hosting guests throughout the day.
Waterdrop M6CG Mineral Hot & Cold Reverse Osmosis System
Photo: Amazon
This countertop reverse osmosis system requires no plumbing and dispenses mineralized hot and cold water from 59 to 203 degrees Fahrenheit. Five volume settings and a removable 40-ounce glass pitcher make it handy for everyday hydration, hot drinks, meal prep, and serving guests.
More Waterdrop Filter Deals for Prime Big Deal Days
Waterdrop’s Prime Big Deal Days lineup includes options for different household sizes, kitchen setups, filtration needs, and budgets, from high-capacity under-sink reverse osmosis systems to countertop dispensers and affordable refrigerator-filter replacements.
Our Favorite Prime Day Deals Are Live
Check out our favorite products on sale during Prime Day! We found markdowns on power tools, garden accessories, robot vacuums, power stations, and more.