Membrane Solutions ROULP-3012-400 reverse osmosis membrane for home drinking water treatment or maple syrup filter systems are among the most reliable and consistent elements in the industry. With the industry-standard 12" x 3" size, this high capacity RO element fits most standard 3012 RO housing for the light commercial reverse osmosis water systems. Our membrane elements are shipped dry in an original sealed package for convenient handling and long shelf-life. The membrane normally lasts about 2-3 years depending on your source water quality. 400 GPD RO membrane with a high 97% stabilized salt rejection rate. Hundreds of impurities are reduced by over 99% through the 0.0001-micron TFC membrane layer, including heavy metals (fluoride, calcium, magnesium, lead, colloids, chromium, and nitrates), organic materials, and harmful minerals, including other soluble salts found in water resources. MS Reverse Osmosis (RO) membranes are made from 100% food-grade Thin Film Composite (TFC) material for ultimate purification performance with high permeate flow, tested by an independent third-party to meet NSF/ANSI 58 standards. [Warm tips] The Max. Feed water Permeated Flow of RO membrane is 0.1GPM, which can fully meet general household drinking water needs but may not meet needing of a high flow rate, such as gardening (We do not recommend buying for hydrologic stealth). [More Otions] Friendly Design, Easy Installation. For the bundle of the membrane and housing, please search for B07BT6HZNH in Amazon for reference. Membrane Solutions 400 GPD Reverse Osmosis Membrane 2-Pack