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Locking screw to hold damper in place
Spiral Diffuser Radius Flush Mount Diffuser Single Deflec
Ceiling opening must be 4” larger in length and width than the nominal duct size
Square or rectangular for vertical mount only
Sleeve Submittal
Volume Damper Low-Leak OBD 3000-0BDLL-66X52 Commercial Locking screw to hold damperh3. 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.
