This is the countertop water filtration system that transforms ordinary tap water into pure drinking water at the touch of a button. Requiring no installation, it uses a four-stage, reverse osmosis process to purifiy a gallon of water in just 15 minutes, removing 83 contaminants including metals, chlorine, fluoride, pesticides, nitrates, and other impurities. Water passes through a two-step pre/carbon filter that reduces sediment, rust, and particles, a reverse osmosis filter that reduces impurities down to 1/10000 micron, and finally through a carbon VOC (volatile organic compound) filter that enhances taste. It eliminates the waste and expense of bottled water and unlike faucet filters, it doesn’t require a plumbing connection. With a removable tap water reservoir and purified water pitcher. AC plug. 14 1/2" L x 14" W x 12" D. (16 lbs.)