Ruskin India Control Dampers ( RI-CD40-AG ) are manufactured in GI frame and extruded Aluminum blade construction.

The frame is manufactured in 16G C-channel with 157 mm width and 30 mm flange. The Blade is in Aerofoil low leakage extruded aluminum construction with 150mm wide. The Linkage is on side frame with ½” Plated Steel Hex Axle and Bronze bush.