Damper Bracket and Linkage Assembly, Modutrol Motor to Standard Damper or Set of Dampers to Provide Control of Duct Airflo Includes Motor Mtg Bracket with Motor Crank Arm for 1/2" Dia. Shaft & 2-Ball Jts, Less Push Rod, Dims: 9"H X 5-5/8"W X 4-1/2"D, Weight: 2Lbs 4.1oz, In Mfg/Box, Origin: Unknown