... ) auto flush 4)9L capacity tank inside Ro water purifierFour stage reverse osmosis water filtration systemCartridge: PP, UDF,CTO, RO membraneWater ... ,micro colloid and micro suspended materials. To make the water which into the RO membrane is suitable so as make ... ,bacterials and so on,onlyleft the water molecule and dissolved oxygen,output water is purity water family use RO water purifier (CE ROHS)