Undersink reverse osmosis: 1.Standard 5 stage RO system 2.Food grade material Water resource:tap waterWater pressure:0.2-0.5M PaFiltration ... 50G CSM membrane 3.0G pressure storage tankStainless steel drinking water tap Carton Mea.:390*375*458 Container loading:20' ... and reduce of tats,odor ,and color.Stage 4:(RO)Reverse osmosis membrane ,thins film composite high quality membrand taht processes 50GPD ...