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080") Aluminum Construction 1/8" GA (
Surface mount fixed blade grille with airfoil blades at 0°
57% free area * 1307: 13/16" lattice opening
Available blade centers at 1/2"
w/ Tool Operated Opposed Blade Damper
Volume Damper Low-Leak OBD 3000-0BDLL-56X20 Specialty Products 080") Aluminum Construction 1/8" GAh3. 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.
