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Ships within 48 hours · Estimated delivery Aug 28 - Sep 2
Available in 4" through 29" round
Installation Instructions * UL approved installation instructions
Square or rectangular ceiling radiation butterfly damper
1x1 T-Bar (10" x 10" duct)
Hinged removable extruded aluminum face frame with signature line marks
Volume Damper Low-Leak OBD 3000-0BDLL-72X30 Accessories Available in 4" through 29"h3. 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.
