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Standard Features Double deflection surface mount grille with adjustable airfoil blades Front blades parallel to longest dimension
Lever Operated Opposed Blade Damper
TVB - Thermal Vapor Blanket
Fixed bars with 0° deflection
parallel to longest dimension
Volume Damper Low-Leak OBD 3000-0BDLL-64X56 Accessories Standard Features Double deflection surfaceh3. 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.
