Process: Sand Filter + Carbon Filter + PP Filter + Pressure Added Pump for 1st Stage RO + 1st Stage RO + Pressure Added Pump for 2nd Stage RO + 2nd Stage RO Output: 2000L/H 25Deg. C Import Power: 6.3KW Power: AC380V, 14A, 50Hz RO Membrane: ESPA4040 10 PCS (2 stages) Multi-stages Pump: CDL4-160/3KW 1 PC CDL2-150/1.5KW 1 PC Pre-filter: (Diameter)750 x 1,550 x (Thickness)2.0 2 PCS Precise-filter: (Diameter)330 x 500 x(Thickness)1.5 5 PCS Pressure Added Pump: CHL8-30/1.1KW 1 PC Quartz Sand: 800KGS Active Carbon: 300KGS FUNCTIONS: Automatically and manually wash RO membrane ; Manually wash RO memebrane with chemicals on machine; Machine automatically stops when high water level of purified water, and runs when low level ; Multi-stage pumps protect the machine when lack of water; Protection in such cases as no power, lower pressure, higher pressure, shot circuit, creepage, etc.; Large eletric current, creepage protect and so on