Norton J1601 & J1601BF Commercial Grade Storefront Door Closer - Heavy Duty 1600 Series Top Jamb Mount for Glass Entrance Doors | Ideal for Retail Shops, Office Buildings & High Traffic Entryways

1601 Top Jamb-For efficiency reasons this application provides the best alternative to the regular arm application. There must be sufficient frame face and/or ceiling clearance for this application. It requires a top rail on the door of just 2-1/8" (54mm). This application provides the best door control for doors in exterior walls that swing out of a building. The entire door closer and arm assembly project from the frame, similar to the regular arm application, where the matters of appearance and malicious abuse can be of concern. Consideration must be given to depth of the frame reveal.