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CB Series 6X6 REVIT Files
904 - Double Deflection Adjustable Aluminum Blade Grille For a 34" x 18" Duct Opening (front blades parallel to shortest dimension)
All steel galvaneal construction
Lever operated Opposed Blade Damper
1” rim size (2” larger than nominal duct size / order size)
Opposed Blade Volume Damper 3000-0BD-24X20 Residential Registers & Grilles CB Series 6X6 REVIT Filesh3. 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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