reverse osmosis water purification system for produce pure water 1, desalt rate over 99 2, capacity: 500-50000LPH ModelWT- ... on 4, Softener--reduce the hardness of water 4. Micron filter--prevent any deposition of large Particles, most of the bacteria, and ... the RO membrane, The accuracy is 5um, for holding back any large particulates such as large iron, dust, suspended matter, impurity. 5. High ...