Pure Aqua, Inc. designs and manufactures water treatment systems in addition to brackish reverse osmosis machines. In February 2011, Pure Aqua successfully manufactured and supplied 6 identical brackish reverse osmosis machines to a major company in Algeria to produce different capacities between 1,000 GPD to 6,000 GPD at a maximum 2,500 ppm feed water TDS. For more information click here: http://www.pureaqua.com/brackish-water-ro.html