Pure Aqua Inc., designs and manufactures water treatment systems in addition to twin alternating water softeners. In July 2013, Pure Aqua manufactured and delivered a twin alternating water softener to a major company in Kuwait. Each 24” softener tank has an exchange capacity of 270,000 grains and produces 50 GPM. While one tank works, the other is regenerating. For more information click here: http://www.pureaqua.com/water-softeners.html