... , foodstuff, drinking water. 4.1 year guantee reverse osmosis water treatment system Use:Cosmetic, pharmacy, chemical industries, foodstuff, drinking ... system, auto backwash RO fil, raw water and well water conductivity is displayed on line.3, Reverse osmosis desalination rate more than99%, system ... 5000.50.7550≤10≤400RO-500-A is reverse osmosis +Mixed bed (zwitterions exchange column) outlet electrical ...