Waterdrop - WD-K19RF Filter, Replacement for WD-K19-S and WD-K19-H Countertop Reverse Osmosis System, 12-month Lifetime - White

The 5-stage water filtration removes 99.6% of all dissolved solids from your tap water – more than any other leading brand.The filter is IAPMO certified to reduce PFOA/PFOS, lead, chromium and mercury. Every water pitcher comes with a free TDS Meter to check the levels of dissolved solids before and after filtering your tap water - to show there is nothing left behind but the purest tasting water.​

Upgrade your hydration with the Hydrofast B100—the smarter, cleaner, and more convenient way to enjoy pure water every day! Featuring a powerful 6-stage RO filtration system with built-in UV sterilization, it removes 95% of TDS, eliminates heavy metals, fluoride, and over 1,000 contaminants, while remineralization adds essential nutrients for healthier, better-tasting water. No installation needed—just plug and play on any countertop in your home, office, or RV. The eco-friendly 3:1 pure-to-drain ratio reduces waste, and the long-lasting filter lasts up to 12 months with easy twist-and-pull replacement. Stay in control with the smart display, offering instant TDS readings, filter status updates, and quick-select dispensing options (3.4/8.5/15.2/20.3 fl oz). With a rapid 100 GPD flow rate and a 1.06-gallon tank, you’ll always have fresh, safe water on demand. Ditch plastic bottles and embrace a sustainable lifestyle—the Hydrofast B100 delivers purity, convenience, and peace of mind in every sip.

The Hydrofast C100 Countertop RO Water Purifier provides instant chilled 50°F (10°C) water with a 6-stage filtration system, including UV sterilization, that removes 99.9% of contaminants. The side-mounted 1.06-gallon tank is easy to refill, and the system requires no installation—just plug in and use. With a 3:1 pure-to-waste ratio, the C100 produces up to 528 gallons of purified water annually. BPA-free and low maintenance, it offers clean, safe water with a simple filter replacement.