SKU: 68179, Make: Belimo, Model: LMB24-3, Type: Non-Spring Return, On/Off/Floating Point Control , Direct Coupled (No Aux Switch), Volts: 24, control. This is a valve actuator, not a duct actuator. Picture shown is for a duct actuator, but my item has a handle with 2 bolts to secure to a ball valve.