Air Showers and Pass Thrus Unlimited, Inc. (ASPT)

Air Showers and Pass Thrus Unlimited, Inc. (ASPT), headquartered at PO Box 427, Rancho Cucamonga, California 91729, has been designing and manufacturing air showers and pass thrus since 1979. A family-run company for over three decades, they build standard size and custom models to fit specific requirements. Air showers range from 48" to 10' width, 36" to any required depth, and 72" to 13' height. Construction materials range from wood core with plastic laminate to stainless steel, and all units are designed for knock-down shipping and easy on-site reassembly. Serving semiconductor, pharmaceutical, medical, biotech, aerospace, automotive, electronics, food processing, and paint industries. Ships worldwide. Revenue <$5 million, <25 employees. Contact: (909) 483-1709.