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Blades are parallel to the shortest dimension
Square or rectangular ceiling radiation butterfly damper
Square or rectangular for vertical mount only
904 - Double Deflection Adjustable Aluminum Blade Grille for a 16" x 8" Duct Opening (front blades parallel to shortest dimension)
Parallel Volume Damper Low Leak 3000PLL-50X50 Smoke-Fire Damper Blades are parallel to theh3. 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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US$ 11.70
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US$ 49999.50
US$ 10.00
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US$ 10.70
US$ 11.00
