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Ships within 48 hours · Estimated delivery Sep 9 - Sep 14
Square to round transition collar
Powder coat finish
Heavy gauge cold roll steel
Fan shaped 1/2" spaced louvers
Options * Sleeve variations * 304 stainless steel construction * Fractional and odd sizes available h3
Opposed Blade Volume Damper 3000-0BD-42X18 Smoke-Fire Damper Square to round transition collarh3. 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.
