Hydrofast Cold Water Reverse Osmosis Water Filter Countertop

• Amazon now offers Hydrofast C100 Countertop Reverse Osmosis Water Purifier that instantly dispenses 50℉ refreshingly pure water, now priced at $299.99 (originally $399.99).
• Prime members enjoy free two-day shipping, while non-Prime members get free shipping on orders over $35 within the U.S.
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Editor's Pick: The C100 countertop cold water RO purifier delivers 50℉ refreshingly pure water instantly with just a 5-second press of the cold water button—no waiting for refrigeration and no risk of secondary contamination. Its 6-stage reverse osmosis filtration removes 99.9% of harmful substances, while remineralizing with calcium, magnesium, and potassium for healthier, better-tasting water. The side-mounted water tank design makes refilling easy while taking up minimal space on most countertops. With a 3:1 pure-to-waste water ratio, the filter can produce 1,056 gallons of pure water, eliminating over 8,000 plastic bottles annually, and the waste water can be reused. No installation required—just plug in and add water to start using.