The Screen Machine

Established in 1974, Southern California Air Conditioning Supply Co. specializes in the manufacture of air-handling items. Based in El Cajon, Calif., the company offers a plethora of air-handling items, such as duct work, grills, registers, fans and venting products. Southern California Air Conditioning Supply Co. also stocks dust and exhaust systems. Operating from a 25,000-square-foot facility, the company caters to heating and air-conditioning contractors in San Diego County, Imperial County and part of the Riverside County.

Based in Oceanside, Calif., with sales worldwide, Hydranautics is a global leader in membrane technology. It was founded in 1963 and became part of the multi-billion dollar Nitto Denko Corporation in 1987. Hydranautics manufacturers reverse osmosis, nanofiltration, ultrafiltration and microfilm membrane products for water treatment applications. In 2005, the company introduced its line of Energy Saving Polyamide membrane technology. Its ESPA2+ membranes feature exceptional salt rejection, which allows them to be used in a variety of lower pressure applications. It is suitable for commercial, industrial and larger groundwater municipal projects.