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SD52 Submittal Drawing
Allows for 2-way airflow adjustment
Options (must specify when ordering)
Square Collar
104 D FR - U
Volume Damper Low-Leak OBD 3000-0BDLL-52X12 Residential Registers & Grilles SD52 Submittal Drawingh3. 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.
US$ 19.99
US$ 21.19
US$ 13.09
