- Mounting tri-pack regular, top jamb and parallel arm applications
- Door preparation 9-1/16 inch horizontal and 3/4 inch vertical mounting hole locations (retrofits traditional closer)
- Valves adjustable, independent, non-critical (sweep and latch), consistent closing speeds
- Parallel arm bracket included
- Main arm is forged steel and accommodates up to 3-1/4 in., adjustable extension arm
- Fits same hole pattern as Norton 1600 or Yale 50 serious
- Spring power is adjustable 1-4 sized or fixed 2, 3 or 4