Opposed Blade Volume Damper 3000-0BD-70X22 Step Down Ceiling Diffuser Options * 304 stainless steel

Options * 304 stainless steel construction h3

3% maximum leakage with a pressure differential 3" W

Square to round 2" collar with roll formed retention bead - available in square sizes only

Standard Features * 1/2" spaced vision-proof dual angular louvers for strength and maximum free area * Margin edges are 7/8" projection for baseboard installation * Soft White with color matching screws Options * 1133 - 1/3" spaced dual angular louvers * 1175 - added mullion stiffeners for greater strength * Standard Color

Perforated face grille

Opposed Blade Volume Damper 3000-0BD-70X22 Step Down Ceiling Diffuser Options * 304 stainless steelh3. Standard Features * Opposed blade operation for precise volume control * 16 gauge galvanized channel frame * Blades are vee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3.