... techniques, six levels effective water treatment and two sterilization with ozone and UV.3.Payment system with coin operation (one pc coin acceptor ... photosensitive to save the electricity cost.8. The machine can be installed to shop , supermarket, residence area,street, community, school, ... .1~0.4MPa(1~4Kg)RO Working Pressure0.5~0.6MPa(5~6Kg)Filling Speed7-12Liters/MinuteFilling Container5 gallon or ...