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Locking screw to hold damper in place
Blades are parallel to the longest dimension
Opposed Blade Damper standard on 4" widths
Aluminum 3 cone T-Bar diffuser with a fixed face
Designed to handle high volumes of air with horizontal flow
Parallel Volume Damper Low Leak 3000PLL-24X14 Smoke-Fire Damper Locking screw to hold damperh3. 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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