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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
Countersunk mounting holes with color matching Phillips Pozidriv screws
Narrow ceiling grid dimples for 9/16" T-Rails
Standard Features * 2661 - Square or rectangular fire door for vertical mount only
available 4" through 40" round (2549)
Volume Damper Low-Leak OBD 3000-0BDLL-20X16 Accessories Countersunk mounting holes with colorh3. 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.
