RO drinking water device, RO filter 1.Reverse osmosis water 2.Dow, Hydranaustic membrane 3. ... meter. Matching equipment:original water pump,mechanical filter,activated carbon filter,ultrafilter high pressure pump, RO systems ,cleaning system, high and low pressure ... with pretreatment system, such as active carbon absorption filter and refined quartz sand filter 4) 304 stainless steel rack and pipe ...