Product Name: Nanofiltration Reverse Osmosis Membrane Element, 50gpd Membrane Model NO.: NE1812-50 Capacity: 50 Gallon Application: Household Salt Rejection Rate: 80% Certification: ISO9001, RoHS, NSF Recovery Rate: >=50% Trademark: SOURCE WATER Transport Package: Plastic Bag+Carton Specification: Diameter: 1.8 inch Origin: China HS Code: 8421999090 Product Description This is one serie of our Household membrane series:Nanofiltration Membrane series,one of the most popular seriesReverse Osmosis membrane elements. Its selling point is have the nanofiltration function,with a lowwer salt rejectionrate,can retain more useful ions in the water,which is good for people's healthy.This kind membranecan make from 30GPD-800GPD for 1809/1812/2512 and so many different models with different membrane diameters&length and water flow,and with highrecovery rate. We provide customized service,can meet your different needs for RO membranes.The details technical data refer to below chart: