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Ships within 48 hours · Estimated delivery Aug 21 - Aug 26
* UL and California State Fire Marshall approved * 4-1/4" standard frame style * Maximum dimension 60w
904 - Double Deflection Adjustable Aluminum Blade Grille For a 18" x 6" Duct Opening (front blades parallel to shortest dimension)
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125") Aluminum Construction 12 GA Steel Construction
Opposed Blade Volume Damper 3000-0BD-68X38 past 12 months * UL and California Stateh3. 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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