Volume Damper Low-Leak OBD 3000-0BDLL-28X24 Commercial For evaporative cooling or high-velocity

For evaporative cooling or high-velocity exhaust applications

Adjustable blades oriented for 3 or 4-way air flow pattern

Standard collar diameter is the same as the diffuser size

Standard Features * Heavy duty 16 gauge steel construction * Blades run parallel to longest dimension given * Gym Grade - includes welded core and extra supports for heavy duty application * Mounting holes for sidewall and ceiling application * Soft White Options * No mounting holes * For opposed blade damper

Heavy Duty Construction (1 1/2" frame depth utilized)

Volume Damper Low-Leak OBD 3000-0BDLL-28X24 Commercial For evaporative cooling or high-velocityh3. 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.