Express Water Reverse Osmosis Water Filtration System – 5 Stage RO Water Purifier with Faucet and Tank – Under Sink Water Filter – plus 4 Replacement Filters – 50 GPDCategory: Microfilter Water PurifierDo you know what's awesome about our Reverse Osmosis System? We build each system with a simpl belief: That you should have fresh, great tasting, purified drinking water in our home. To achieve this, we designed our system to be Easy to Install, operate with Excellent Performance and provide Premium Quality FiltrationThe filters are uniquely designed for High-Dirt and Chemical Absorption capacity which result in Longer Life and Fewer Filter Replacements. The Express Water premium authentic quality ensures your filtration system will operate with Complete Efficiency and Optimum PerformanceFiltration Process1st Stage: 5 Micron Sediment Filter Sediment Filter is melt blown with thermally bonded 100% pure polypropylene microfibers. Removes Silt, Dirt, Rust, Scale, Sediment, Coarse Sand and Sand from water. It's High Dirt-Holding capacity results in longer life and fewer filter changes. 2nd Stage: G.A.C. Filter The Granular Activated Carbon filter cartridge is made of 100% pure coconut shell carbon and features a 5 um nominal micron rating. Removes chlorine, organic chemicals, suspended particles, unnatural tastes and odors, dirt and other chemicals found in tap water. 3rd Stage: Carbon BlockThe Carbon Block CTO is also made of 100% pure coconut shell Carbon in a "block" construction and features a 5 um nominal micron rating. The structural design provides a high chemical absorption rate. Removes chlorine, organic chemicals, suspended particles, unnatural tastes and odors, dirt and other chemicals found in tap water.4th Stage: Reverse Osmosis Membrane (50 Gallons Per Day) The semipermeable Membrane (ROM) element removes up to 99% of aesthetic and health-related contaminants. Removes contaminants like Bacteria, Viruses, Pesticides, Ai, Pb, Cd, Hg, Total Dissolved Solids including many other unhealthy contaminants.5th Stage: Post Carbon Inline Quick ConnectAlso known as the polishing filter because it is the final stage of any standard reverse osmosis system.Made from high quality coconut shell carbon, the inline filter stabilizes the water taste quality and further removes any traces of bad tastes and odors. Parts List5 Stage Reverse Osmosis System 4 Gallon NSF approved Storage Tank Non-air gap designer RO FaucetLeak StopperDrain SaddleColor TubingFlow RestrictorASO ValveFeed ValveHousing WrenchDimensionsFiltration Unit W 15" x H 17 1/4" x D 5"Storage Tank W 11" x H 16" x DIA 11"Faucet Height: 11" x Width/Reach: 5.25" x Clearance: 8" x Base to Bottom: 3.25"Express Water does not distribute or sell it's products to any 3rd party sellers.