... for cosmetic, pharmacy, chemical industries, foodstuff, drinking water.4.1 year guan Feature:1, Imported parts ... backwash RO fil, raw water and well water conductivity is displayed on line.3, Reverse osmosis desalination rate more than99%, ... water conductivity (US/CM)Raw water conductivity (US/CM)RemarkRO-5000.50.7550≤10≤400RO-500-A is reverse osmosis ... ≤10RO-50005.03.075≤10 reverse osmosis water system