... system, auto backwash RO fil, raw water and well water conductivity is displayed on line.3, Reverse osmosis ... desalination rate more than99%, system desalination rate more than 97%, filtrating ... -5000.50.7550≤10≤400RO-500-A is reverse osmosis +Mixed bed (zwitterions exchange column) outlet electrical ... ≤10RO-50005.03.075≤10 reverse osmosis water system