Products Home/Products/Accessories/Damper Blade Product Categories Aluminium Eggcrates Ceiling Diffusers Grilles Swirls Linears Jet Diffusers Floor Diffusers Weather Louvres Plastic Grilles Supply Air and Plenums Fire Damper Dampers Zoning Accessories Damper blade is made of quality 0.6mm galvanized steel, and mainly used for motorised dampers. With foam on the edge, it gives the damper good seal when the damper is closed. Sizes available:D150D200D250D300D350D400D450