Amerex Corporation is a large American manufacturer of firefighting products. Based in Trussville, Alabama, Amerex makes hand portable and wheeled fire extinguishers for commercial and industrial environments, as well as fire and explosion suppression vehicle systems for defense applications. Amerex's innovative technology has led to the production of pre-engineered automatic restaurant systems, vehicle fire suppression systems, gas detection, industrial systems and fire detection devices. McWane, Inc. acquired Amerex in 1999.