Volume Damper Low-Leak OBD 3000-0BDLL-72X62 Accessories 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"

Extruded aluminum frame with steel roll formed blades and steel multi-shutter damper

Standard Features * 2533 - Square or rectangular for vertical mount only

Options * 3000 OBDLL - Low Leak Air Control Damper

Building materials rated 2 hours or less

Volume Damper Low-Leak OBD 3000-0BDLL-72X62 Accessories 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.