The ProSeries High-Efficiency 1:1 Reverse Osmosis System is a long-lasting water filtration system designed to cleanse your municipal water from harmful contaminants. This reverse osmosis system has an incredibly high recovery rate of 75%, ensuring that it will remove harmful pollutants such as chlorine residue, heavy metals, and bacteria. The drop-in design and sleek, simple assembly make this filtration system incredibly easy to install and use. 4-gallon storage tank Designer Chrome non-airgap faucet 5 stages of filtration 1:1 ratio drop-in style reverse osmosis membrane 50 GPD (#61114) 5 Stage Purification Process: 5 Micron Sediment Filter reduces dirt, sand, and rust 10 Micron Carbon Block Filter reduces chlorine, objectionable tastes, and odor 10 Micron Carbon Block Filter reduces chlorine, objectionable tastes, and odor 50 GPD (gallons per day) Membrane high production thin-film composite membrane Carbon post-filter enhancing the water’s taste