Pure Aqua, Inc. manufactured a reverse osmosis system for a major company in Sri Lanka. The system included a multimedia filter, activated carbon filter, twin alternating water softener, RO system and UV sterilization. The RO unit was chosen from our RO-200 series and was designed to produce approximately 4,500 GPD. The Click here for more information: http://www.pureaqua.com/commercial-reverse-osmosis-systems-ro-200-series.html