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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13
Standard Features * 1 1/2 hour rated fire damper * 2549 - Round damper for vertical mount only
UL listed and tested in accordance with UL Standard 555
linkage and handle enclosed in valve to assure trouble-free operation * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * SCB41 - 4-way air pattern * SCB31 - 3-way air pattern * SCB41 O or SCB31 O - steel lever operated opposed blade damper * SCB42 or SCB32 - no damper * Tamper proof screws * Standard Color
Performance Data
Volume Damper Low-Leak OBD 3000-0BDLL-46X38 Step Down Ceiling Diffuser Standard Features * 1 1/2h3. 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.
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