... 3.used for cosmetic, pharmacy, chemical industries, foodstuff, drinking water. 4.1 year guantee reverse osmosis water treatment system Use:Cosmetic, pharmacy, chemical industries, foodstuff, drinking ... (KW)Recovery(%)Well water conductivity (US/CM)Raw water conductivity (US/CM)RemarkRO-5000.50.7550≤10≤400RO-500-A is reverse osmosis +Mixed bed ... .03.075≤10RO-30003.03.075≤10RO-50005.03.075≤10