... Membrance, Force Pretreatment Backflush, 98% Desalting Rate. RO water filter, RO water system, RO water purifier:Key Specifications/Special Features ... membrane: ESPA4040 3 piecesPump: CDL2-180/2.2kW, 1 piecePre-filter: Φ300 x 1650, 2 piecesPositive ion container: Φ300 x ... Φ90 x 1,000, 3 piecesPump: BLC70/0.55kW, 1pcQuartz sand: 150kgActivated carbon: 50kgDimensions: 1,980 x 900 x 1,940mmAutomatically ...