Volume Damper Low-Leak OBD 3000-0BDLL-24X40 Commercial Standard Features * Individually adjustable

Standard Features * Individually adjustable curved blade T-Bar lay in diffuser with concealed hinges * Hinged perforated face * Spring push release for easy access to adjust curved blades * 2x2 galvaneal steel panel with seismic support hangers * Round No Labor Collar sizes: 6-10"

Hinged removable extruded aluminum face frame with signature line marks

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w/ Tool Operated Opposed Blade Damper

Volume Damper Low-Leak OBD 3000-0BDLL-24X40 Commercial Standard Features * Individually adjustableh3. 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.