Pay in 4 interest-free payments of $42.88 Learn more
Ships within 48 hours · Estimated delivery Sep 26 - Oct 1
with 57% free area
Nylon bushings on adjustable blades prevent metal on metal rattle
080") Aluminum Construction 1/8" GA (
listed Fire-Resistance Diffuser * TVB - Thermal Vapor Blanket * Square collar
Opposed Blade Volume Damper 3000-0BD-20X12 Specialty Products with 57% free areah3. 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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