Water filtration system 1.Standard 5 stage RO system 2.Food grade material Water resource:tap waterWater pressure:0. ... voltage/Frequency:AC 220V/50HzRated power:30WUtilization of water:50%RO 5 stage systemFilter PP, GAC, CTO 50G CSM membrane 3.0G ... :(RO)Reverse osmosis membrane ,thins film composite high quality membrand taht processes 50GPD,it remove:lead,cooper,barium,mercury, sodium.Stage 5: ...