The newest Retrozone Damper Motor upgrade to keep your old dampers working!
Allows Belimo Motors to be mounted on 1/2” drive shafts that are too short for the factory motor.
Adapts many dampers with a 3/8 rectangular drive shaft or 1/2 inch or smaller round drive shaft. Includes motor, 1/2 ID x 4 adapter, extended TF bracket and hardware. TF motor can be substituted at additional cost. It replaces 35136, 35138, and 35139 as well as other motors.