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Ships within 48 hours · Estimated delivery Oct 25 - Oct 30
Nylon bushings on adjustable blades to prevent metal on metal rattle
Soft white
Countersunk mounting holes for a flush appearance
Diffuser available in sizes 6×6 through 20×20
Square to round transition collar
Opposed Blade Volume Damper 3000-0BD-72X52 Smoke-Fire Damper Nylon bushings on adjustable bladesh3. 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.
