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Ships within 48 hours · Estimated delivery Aug 27 - Sep 1
" Spiral pipe diameter must be 4” larger than width of grille
125") Aluminum Construction 12 GA Steel Construction
Heavy Duty Construction
120x120 multiple
Perforated face grille
Opposed Blade Volume Damper 3000-0BD-44X38 T-Bar " Spiral pipe diameter musth3. 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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