This commercial skid mounted reverse osmosis system was shipped to Nevada, USA for use after completion in July 2010. The RO system was intended to treat well water with a TDS of about 3,500 ppm. The system included in addition to the reverse osmosis unit, a multimedia filter, activated carbon filter, and a water softener. The system in its entirety was skid mounted for easy transportation and installation at desired location. For more information click here: http://www.pureaqua.com/custom-water-treatment-systems.html