Argan designs and manufactures precision filtration equipment for critical applications. It is a division of Western Filter, a California-based company that manufactures products for fluid filtration. Puroflow specializes in all-metallic and micro-fiberglass filters of standard and custom design. Puroflow s products include miniature fuel injector nozzle filters in turbine jet engines, filters in hydraulic and pneumatic systems, large cryogenic and petrochemical filters and filters for driver and passenger side and side impact air bag inflators. Puroflow is among the leading filter suppliers for the United States Space Program. Its products are used in applications, including the Space Shuttle Program, various commercial and military satellites, launch vehicles and boosters and ground support equipment. Puroflow's corporate facility is located in a 50,000-square-foot building in Valencia, Calif.