Grade 1, UL listed panic device. Durable, aluminum mechanism case construction. Deadlatching standard. Devices fit standard 1 3⁄4" thick door. 4 1 ⁄4" minimum stile width. Hex Key Dogging standard on all panic devices. All devices and trim are non-handed. Universal hardware pack for wood and hollow metal. Door widths: 36" device fits 29" to 36" door size; 48" device fits 33" to 48" door size.