Arrow S1250 Aluminum Grade 1 Rim Exit Device / Panic Bar, specially designed to replace or upgrade an existing exit device. This panic bar is ANSI/BHMA A156.3, Grade 1 certified, it is UL and CUL Listed for accident hazard (panic) standards, it has ANSI A117.1 accessibility code, it complies with life safety code NFPA 101, and its complies with fire door and window code NFPA80. This exit device has a fire rating of UL/CUL listed for 3 hour, "A" labeled and lesser dors, with prefix "F" before part number. The Chassis and cover are made of non-ferrous alloy, and the end caps are metal. This panic bar fits hollow metal doors 1-3/4" inches thick, rail size furnished standard for 32-1/4" to 36" inch door width, with a 4-1/2" minimum stile, an allen-type key standard dogging, cylinder sold separately. The 3/4" throw is constructed of stainless steel, and the rail assembly is made of steel.