... Programmable PLC 3000L stainless steel RO deionized water equipment with atuo control system stainless steel RO membrane housing+pre-treatment vesselsoutput pure ... matter, colloid ,ect.3. Active Carbon filter--Remove the color, free chloride, organic matter, harmful matter ,ect.4, Softener—using ion ... RO membrane(at least 2.0 Mpa). 6. RO system--RO system is the main part of pure water treatment plant. ...