... this system contains: sand filter, active carbon filter, micro filter, RO system, UV sterilizer, Ozone mixer tank.1. sand filter:This ... that remains in the water, protect the RO film.4. RO system:This system contains: RO film, pressure vessel, frame, high pressure ... filter(precision filter)φ500mm×H1400mm×δ3mm5RO-1010 units of 8040 RO film6UV sterilizer10 UV lights7ozone mixer tank50g/h Ozone generator ...