Pure Aqua, Inc. designs and manufactures water treatment systems in addition to brackish RO machines. In March 2011, Pure Aqua successfully manufactured and supplied 21 brackish RO machines to a major oil company Iraq to produce different capacities between 1,000 GPD to 30,000 GPD at a maximum 5,000 ppm feed water TDS. For more information click here: http://www.pureaqua.com/brackish-water-ro.html