Designed for use in areas with water pressure lower than 40 PSI, Turn on & off automatically. With extra 4 pcs replacement filters, total 9 pieces filters in the box. HIGH EFFICIENT FILTRATION-5-Stage Under-Sink Reverse Osmosis Drinking Water Filtration System with NSF certificated Thin-film composite RO membrane filters down to 0.0001 micron, Reduce 99% contaminant , including Heavy Metal, Arsenic, Lead , Mercury , Fluoride, Hardness, Cadmium, Chlorine, Taste, Odor, Asbestos, Hydrocarbons, Cyanide, Trivalent chromium and more 1000+ contaminants.HIGH QUALITY-- All tube, fittings, storage tank, Ro membrane complies with NSF/ANSI standard 58 to provide healthy, safe, and pure water, NSF certificated LEAD FREE deluxe kitchen sink faucet as last pure water guarantee in your home. EASY&CONVENIENT-Streamlined DIY filter installation; fits most under sink cabinets, the ratio of pure water and waste water is 1:2. The item "5 Stage Reverse Osmosis RO Drinking Water Filter System-75GPD with Booster Pump" is in sale since Monday, February 11, 2019. This item is in the category "Home & Garden\Kitchen, Dining & Bar\Small Kitchen Appliances\Water Purification\Water Filters". The seller is "geekpure" and is located in Dallas. This item can be shipped to United States.