Opposed Blade Volume Damper 3000-0BD-64X44 past 12 months Standard Features * Return air

Standard Features * Return air T-Bar lay-in filter grille for 20" x 20" duct * Removable louvered 20 gauge steel face * 20" x 20" x 1" filter (not included) * Square collar (20x20) * 2x2 panel * Seismic support holes * Soft White Options * Square to round No Labor Collar

Square to round transition collar

One piece stamped steel frame on most common sizes

All steel construction

Recessed screwdriver operated opposed blade damper to control air volume for positive balance of system

Opposed Blade Volume Damper 3000-0BD-64X44 past 12 months Standard Features * Return airh3. 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.