Pure Aqua, Inc. designs and manufactures water treatment systems in addition to multimedia filters. This multimedia filter was manufactured for a customer located in USA, March of 2013. The 20 inch diameter multimedia filter using sand, anthracite, and gravel in order to capture impurities. This filter is also paired with a 24 in diameter activated carbon filter which are used to treat well water. For more information click here: http://www.pureaqua.com/media-water-filters.html
