5 stages RO water system Household RO water purifierModel Number:UE-RO50G-Y1Size:45cm*39*58Product instructionStage 1: Transparent Filter Housing, 5μm PPF fiber cartridge. Removing sediment, suspended solids, colliod,iron rust, particle in the raw raterStage 2: Block activated carbon filter cartridge. Remove odor, color, residual chlorine, trichloromethane, etcStage 3: 1μm PPF fiber cartridge. ...