HW series pure water treatment units that we manufacturing consist of pre-treatment part, RO device and back treatment part, including sand filter, active carbon filter, softener, micro filter, RO system and UV device or Ozone device. Widely use in the field of drinking water production, bottling industry, water supplying, tap water purifying, ultra pure water for electronic industry, desalination for saline waters and brackish waters, etc. Equipped with Mitsubishi PLC for automatic control of auto running from raw water to end-product water and back wash process. With adjustable full automatic backwash time controller, before each time running. Origin Ningbo,China Material Stainless Steel