Von Duprin 22 series rim exit device for all types of single and double doors with mullion, UL listed for Panic Exit Hardware. Devices are ANSI A156.3, 2001, Grade 1. The 22 series covers stock hollow metal doors with 161* cutouts. Fits door stiles as narrow as 3 13/16 (97mm), see page 12. See opposite page for available outside trim and device functions.