Pay in 4 interest-free payments of $272.38 Learn more
Ships within 48 hours · Estimated delivery Oct 8 - Oct 13
Collar sizes available in 6”–10”
Opposed Blade Damper standard on 4" widths
For evaporative coolers or central blower systems
CSFM California State Fire Marshal listed
Flush core and frame provides smooth surface
Volume Damper Low-Leak OBD 3000-0BDLL-38X32 Commercial Collar sizes available in 6”–10”h3. 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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