Volume Damper Low-Leak OBD 3000-0BDLL-34X34 Residential Registers & Grilles smooth style * 360 air

smooth style * 360 air diffusion * Excellent for variable air volume applications * Hinged-down core for easy access * No Labor Collar * Seismic support hangers * Available sizes: 6"-10"

Air Patterns

12" and 14") * HVD OR - factory installed opposed radial damper (sizes 6"-14") * HVD FR - U

700MA Series Engineering/Performance Data

Volume Damper Low-Leak OBD 3000-0BDLL-34X34 Residential Registers & Grilles smooth style * 360 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.