Volume Damper Low-Leak OBD 3000-0BDLL-36X12 Accessories Standard Features * For large

Standard Features * For large volume air delivery * For evaporative coolers or central blower systems * Adjustable directional dampers with shut-off * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White

850 Series Submittal

Maintains horizontal airflow pattern

904 - Double Deflection Adjustable Aluminum Blade Grille For a 40" x 18" Duct Opening (front blades parallel to shortest dimension)

with 75% free area Options 14 GA 304 SS Construction 12 GA (

Volume Damper Low-Leak OBD 3000-0BDLL-36X12 Accessories Standard Features * For largeh3. 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.