... 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. ... the pressure of flow pipe, produce water, supply water, and pause by water overfull or lackAutomatic RO membrance flushing ... and more EW-RO-450L/H RO water filter