Dorma 8836 End Load Arms for Aluminum Or Tempered Glass Doors, 7/8 Inch Top Rail, for RTS Series Closers

Dorma 8831 side load top arm for RTS88 overhead concealed closers. For aluminum or steel doors with a minimum 1/2" top door rail channel depth.

For RTS88 - Side Load Top Arm with channel for wood doors Requires a 5/8" 

Dormakaba MOD DS Heavy-Duty Parallel Closer Arm, Door Saver Cushion Heavy-duty parallel arm with integral cushioned opening function. Available in nonhold open, thumb turn hold open, and hex key...