Detail: Quality report of tap water is necessary, and we can adjust the configuration the machine exactly. Normally, the machine include raw water tank, raw water pump, plate heat exchanger, sand filter, active carbon filter, precise filter,No.1 high pressure pump,No.1 RO membranes, middle water tank,No.2 No.2 high pressure pump,No.2 RO membrane, pure water tank, pure water pump, precise filter, cleaning tank, cleaning pump, metering pump, metering bucket and control system.You can add EDI for high quality pure water. Feature: High automation, operation is simple With the auto washing function when the machine start, and the RO film will have long life. With water quality on-line detection function, you can know water quality at any time Fully automatic flushing, and water full stop function The United States RO and multistage stainless steel pump Main Technical Parameter: M-PWM500 500