1)5stage filter or more 2) 50 / 75 / 350 /400 GPD 3)RO membrane:Toray from Japan 4) Double O rings filter housing Reverse Osmosis system Model:RO-6 Packing Dimension: 420X350X485mmCapacity:50/75/100GPDBooster Pump:110/220V-24VDC RO Membrane: TorayPressure Tank:3.2GGross weight:16KGNet weight:14KG Model:RO-6 without pump Packing Dimension: 420X350X485mmCapacity:50/75/100GPD RO Membrane: ...