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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13
Dampers above 80 square inches free area will be provided with blade insulation
Nylon bushings for easy adjustment and quiet setting of blades running parallel to shortest dimension
1/2” Wide x 1/2” High square holes
blades prevent metal on metal rattle Countersunk mounting holes with color matching Phillips Pozidriv screws Rust-resistant pre-coat with durable powder finish Soft White Options Screwdriver operated Opposed Blade Damper 2" ADC compliant square to round collar with a bead for ease of installation Heavy Duty Construction MRI Compatible Insect Screen Fractional
Minimum size is 4"x4"
Volume Damper Low-Leak OBD 3000-0BDLL-24X34 Commercial Dampers above 80 square inchesh3. 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.
