... water 4. Micron filter--prevent any deposition of large Particles, most of the bacteria, and viruses into ... The accuracy is 5um, for holding back any large particulates such as large iron, dust, suspended matter, impurity. 5. ... 6. RO system--RO system is the main part of pure water treatment plant. The RO membrane's ... also available! Conductivity of raw water1000US/CM Large Scale Water Treatment System