Super tough cover to protect large components and sensitive modules from vandalism and accidental damage as well as the elements and dirt, dust and grime. Mega Stopper is backed by a lifetime guarantee against breakage and damage in normal use. Protects against vandalism and accidental damage. Fast and easy installation. Protects fire control panels and other large devices. Includes key lock. Cover is molded from thick clear polycarbonate material. Cover is UV-stabilized. Available in clear color only. Comes complete with mounting hardware and gasket. Can be used over volume or lighting controls. UL Listed to U.S. and Canadian safety standards. Polycarbonate rated -40ºF -40ºC to 120ºF 49ºC. Lifetime guarantee against breakage in normal use. 94V-2 flammability rating.