RO drinking water device, RO filter 1.Reverse osmosis water 2.Dow, Hydranaustic membrane 3.Stainless steel RO drinking water device, RO filter1.Reverse osmosis ... pure water quality, and no pollution drained, low produce cost. 3) Equipped with pretreatment system, such as active carbon absorption filter and ... is long, operation simple, the applicability is strong High effciency water filter device