... reverse osmosis water filtration systemCartridge: PP, UDF,CTO, RO membraneWater tank:3.2 gallon pressure tankCapacity: 50GPDPacking size:32*29*43.5cm 1 ... micro suspended materials. To make the water which into the RO membrane is suitable so as make the lifespan of the ... ro membrane are longer 4thRO membrane,remove the micro impurities,colloid, ...