Commercial Water Filtration - Disinfection - Accessories Evoqua's Neptune Benson has been synonymous with water filtration and disinfection serving the recreational market since 1956. Featuring award-winning brands such as the Defender® regenerative media filter, Wafer® disinfection system, and Legacy™ sand filters. Neptune Benson also offers the AEGIS anti-entrapment shield, moveable bulkheads, Dominion® butterfly valves, ProStrainer® and Guardian™ strainers, greenDrive™ VFD systems, as well as all Lawson Aquatics® accessory products. Neptune Benson has the expertise to provide effective and cost efficient solutions for a broad range of industry needs.