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Ships within 48 hours · Estimated delivery Oct 4 - Oct 9
accepts 6"-16" collar (collar by others)
One piece steel frame
Rust resistant pre-coat with durable powder finish
Square to round 2" collar with roll formed retention bead - available in square sizes only
22 gauge galvanized steel roll formed frame
Opposed Blade Volume Damper 3000-0BD-66X34 past 12 months accepts 6"-16" collar (collar byh3. 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.
