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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
Available 4" thru 28" round
904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 14" Duct Opening (front blades parallel to shortest dimension)
Steel construction
Fits 1x1 ceiling grids (collar size 6"-10")
Note: Listed Size Is Nominal Duct Opening / Nominal Filter Size
Parallel Blade Volume Damper 3000P-68X12 Residential Registers & Grilles Available 4" thru 28" roundh3. Standard Features * 16 gauge galvanized channel frame * Parallel blades are cee 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. Options * 3000 PLL Low Leak Air Control
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