Opposed Blade Volume Damper 3000-0BD-20X22 past 12 months *Pricing is based on standard

*Pricing is based on standard 14 GA steel construction

Available 4" thru 40" round

1/4" cross bars

Standard Features * Extruded

Opposed Blade Volume Damper 3000-0BD-20X22 past 12 months *Pricing is based on standardh3. 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.