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Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
CSFM California State Fire Marshal listed
Use for applications with round ductwork to create a clean and easy to install finish for your round registers or diffusers
Standard Features * For large volume air delivery * For evaporative coolers or central blower systems * Adjustable directional dampers with shut-off * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White
Single deflection radius mount spiral pipe grille with adjustable blades
Volume Damper Low-Leak OBD 3000-0BDLL-68X36 past 12 months CSFM California State Fire Marshalh3. 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.
