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Ships within 48 hours · Estimated delivery Nov 3 - Nov 8
Available 4" thru 40" round
904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 30" Duct Opening (front blades parallel to shortest dimension)
enclosed in valve to assure trouble-free operation
Spiral Diffuser Radius Flush Mount Diffuser Single Deflection with Damper
inner dimension and outside dimension available * Available in continuous lengths with butt joints * Tamper proof screws * Standard Color
Volume Damper Low-Leak OBD 3000-0BDLL-62X58 past 12 months Available 4" thru 40" 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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