Every faucet, every shower, every appliance in your home runs on the same water supply. The HomeWater UPSTREAM™ 4-Stage Whole Home Water Filter treats that water at the source — so everything downstream is cleaner, from the ice in your freezer to the water your kids bathe in. What sets the UPSTREAM™ apart is its patented upflow design. Unlike traditional downflow filters that channel water straight through the media, the UPSTREAM™ pushes water upward through the filtration bed — creating a constant, automatic backwash that keeps the media clean without requiring electricity, timers, or manual maintenance. It just works. Inside, a proprietary blend of red flint, KDF55, and catalytic carbon targets the full spectrum of whole-home contaminants — particulates, heavy metals, chlorine, chloramines, VOCs, PFOS/PFAS, and more. The top-loading pre-filter housing means replacing the sediment prefilter takes seconds, not tools. Push-fit adapters and an integrated distributor design make professional installation straightforward. At 1,000,000 gallons of capacity, this is water filtration built to last. Ideal for households of 1-3 people or homes up to approximately 3,200 sq ft. What it reduces: Chlorine, chloramines, heavy metals, VOCs, PFOS/PFAS, sediment, particulates, and other whole-home contaminants. Professional installation available. HomeWater's certified technicians handle everything — from water line connection to system commissioning — so you never have to wonder if it's done right.