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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
Retainer cables are provided on sizes 12" and larger to allow the inner cones to hang securely while adjusting the diffuser
floors and partitions with fire resistance ratings of 2 hours or less (for ceiling application
Building materials rated 3 hours or less
Double deflection transition box mount spiral pipe grille
Opposed Blade Volume Damper 3000-0BD-72X24 past 12 months 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.
