... Pretreatment Backflush, 98% Desalting Rate. RO water filter, RO water system, RO water purifierKey Specifications/Special Features for EW-RO-450L ... /H RO water filterRating Output: 450L/h 25Power Consumption: 2.75KWPower Input: AC220V 18A ... , hotel, unit, the group places, and more EW-RO-450L/H RO water filter