pressure reverse osmosis to purify the portable water andrunning water. With all kinds of beforehand filters, it can get ridof the unhealthy substances such as sand, grits, suspendedsubstances, bacteria, virus, pesticide residue, heavy metallicions, and also can get rid of the carcinogenic substances such aschloroform, fluorine. At most of the potable water and runningwater? S conductivity is<400us? Cm, so when using thisapparatus, pay attention to the original water? S quality. Andstrictly operate, maintain, service it according to this manualbook. The purified water? S conductivity will be less than 10uscm, conforms to the hygienic standard of GB17232, GB17324 inChina. RO pure water apparatus has lots of high quality. With thenormal pure water production line and serviced easily. In the lineof living place, industrial zone and oil field. The apparatus isused as core department of water plant, it can be used as watertreatment apparatus in the field of food, drink, chemical,pharmacy, semiconductor, electronics and so on.