Pure Aqua, Inc. designs and manufactures water treatment systems in addition to commercial RO equipment. In April 2012, Pure Aqua successfully manufactured and supplied commercial RO equipment to a major company in Columbia. The equipment came complete with a multi-media filter for particle removal, activated carbon filter for chlorine removal, water softener to remove hardness, a commercial RO system designed to produce 4,500 GPD at a feed up to 1000 PPM TDS, and a UV sterilizer & ozone to kill bacteria. The TW-4.5K-340 was selected from our RO-200 series and was controlled by a microprocessor control panel. For more information click here: http://www.pureaqua.com/brackish-water-ro.html