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Retainer cables are provided on sizes 12" and larger to allow the inner cones to hang securely while adjusting the diffuser
855 Series Submittal
Options 14 GA 304 SS Construction
For damper free area chart A click here * 2663 - Out-of-Airstream fire door
CB30 - three way
Volume Damper Low-Leak OBD 3000-0BDLL-50X30 T-Bar Retainer cables are provided onh3. 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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