... 4.0KW 3-8US/CM Working Process: Installation: Raw water pump +quartz sand filter + active carbon filter +PP filter+RO ... national standards to produce pure water, the host section contains the security filter, high-pressure pump and reverse osmosis membrane, ... suitable for cosmetics plant,food products factory,hotel,purified water,ultrapure water,swimming pool etc disinfection.high, stable and reliable. ...