Volume Damper Low-Leak OBD 3000-0BDLL-66X42 Smoke-Fire Damper 4-Way ceiling register with stiffened

4-Way ceiling register with stiffened 1/2" fan shaped louvers for silent operation

Designer Color or Satin Anodized Finish available on this product Drawings * CB10 * CB20 * CB30 * CB40

SD34 Series Performance Data

3/4” Wide x 3/4” High square holes

Holds up to a 4" filter (not included) with filter retention tabs (FG4)

Volume Damper Low-Leak OBD 3000-0BDLL-66X42 Smoke-Fire Damper 4-Way ceiling register with stiffenedh3. 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.