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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
Flush core and frame provides smooth surface
Spiral pipe diameter must be 4” larger than the width of the grille
Opposed Blade Damper standard on 4" widths
Tool Operated Opposed Blade Damper
Collar sizes available in 6”–10”
Volume Damper Low-Leak OBD 3000-0BDLL-38X32 Commercial Flush core and frame providesh3. 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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