Pure Aqua, Inc. designs and manufactures water treatment systems in additional to Industrial Water Filtration Equipment to Mexico. The filtration equipment was chosen from our MF-1000 series and came complete with sand, anthracite, and gravel for media. The capacity of this equipment is approximately 2 x 283 GPM. For more information click here: http://www.pureaqua.com/water-filters-industrial-commercial-media-filters-mf-1000.html