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Square collar designed for 22" x 22" duct
904 Series Performance Data
Available 4" thru 40" round
080") Aluminum Construction 1/8" GA (
Uniform 360 degree discharge pattern
Parallel Blade Volume Damper 3000P-50X32 Specialty Products Square collar designed for 22"h3. 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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