... automatic control. Usually, this system contains: sand filter, active carbon filter, micro filter, RO system, UV sterilizer, Ozone mixer ... remains in the water, protect the RO film.4. RO system:This system contains: RO film, pressure vessel, frame, high ... RO film6UV sterilizer10 UV lights7ozone mixer tank50g/h Ozone generator and φ450mm×H3200mm×δ3mm tank8pure water tankV=10m3, sus304 filter RO system ...