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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
Available 4" thru 52" round
Square collar designed for a 20” × 20”
Standard Features * Removable core * Available in five air patterns * 22 gauge steel flush core provides uniform air distribution * Square to round No Labor Collar (6" thru 18") * 2x2 galvaneal steel panel with seismic support holes * Soft White Options * 700DVD D - steel multi-shutter damper * 700DVD O - opposed blade damper * 700DVD FR - U
Standard Features * Adjustable curved blade
For evaporative cooling or high velocity exhaust applications
Opposed Blade Volume Damper 3000-0BD-70X24 Step Down Ceiling Diffuser Available 4" thru 52" roundh3. 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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