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: 700L/H 25Deg.C Import Power: 4.5KW Power: AC380V, 13A, 50Hz RO Membrane: ESPA4040 4 PCS (2 stages) Multi-stages Pump: CDL2-180/2.2KW 1 PC CDL2-180/1.5KW 2 PCS Pre-filter: (Diameter)300 x 1,650 2 PCS Precise-filter: (Diameter)90 x 1,000 3 PCS Pressure Added Pump: BLC70/0.55KW 1 PC Quartz Sand: 150KGS Active Carbon: 50KGS Functions: 1. Automatically and manually wash RO membrane ; 2. Manually wash RO memebrane with chemicals on machine; 3. Machine automatically stops when high water level of purified water, and runs when low level ; 4. Multi-stage pumps protect the machine when lack of water; 5. Protection in such cases as no power, lower pressure, higher pressure, shot circuit, creepage, etc.; 6. Large eletric current, creepage protect and so on.