The American Access Systems AAS 15-0123 fire access box is painted bright red for quick, easy identification by fire departments. The words "fire access" are in capital letters painted bright white on this box from Security Brands Inc.. This 11S 15-0123 model from North Shore Commercial Door has a pre-cut hole that matches Knox Lock specifications. The lock key switch is not included. The faceplate and enclosure are made of heavy-duty 16-gauge stainless steel.