The 500 S.D.M. is a heavy duty low leakage formed steel motorized control damper. The damper is equipped with blade rubber seal and stainless steel jamb seals for low leakage applications.
The 500 S.D.M. is a heavy duty low leakage formed steel motorized control damper. The damper is equipped with blade rubber seal and stainless steel jamb seals for low leakage applications.