Volume Damper Low-Leak OBD 3000-0BDLL-50X42 T-Bar Standard Features * Fixed blade

Standard Features * Fixed blade return air T-Bar lay-in filter grille * Square collar for 20 1/2" x 20 1/2" duct * Hinged removable face * 20" x 20" x 1" filter (not included) * Seismic support holes * Soft White Options * 920 TFG - steel outer frame * 920 2 TFG - 2" filter spacing (filter not included) * No Labor Collar - square to round (2x2 only) * 1x2 (20x8 filter) or 2x4 (20x44 filter) * Satin Anodized Finish available on this product

Field installable bowtie damper with round ring

Countersunk mounting holes for flush appearance with color matching Phillips Pozidriv screws

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

Volume Damper Low-Leak OBD 3000-0BDLL-50X42 T-Bar Standard Features * Fixed bladeh3. 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.