Pure Aqua, Inc. designs and manufactures water treatment systems in addition to commercial seawater reverse osmosis equipment. In January 2010, Pure Aqua successfully manufactured and supplied two identical sets of commercial seawater reverse osmosis equipment to a major company in Columbia. The equipment came complete with a multimedia filter, chemical dosing and UV sterilization. The RO systems were designed to produce 11,000 GPD of product with a TDS of 400 ppm from a well water feed approximately 36,000 ppm TDS. For more information click here: http://www.pureaqua.com/sea-water-reverse-osmosis-systems.html