Volume Damper Low-Leak OBD 3000-0BDLL-36X24 T-Bar Attractive concentric ring deflects air

Attractive concentric ring deflects air stream 360°

Standard Features * 1/2" spaced vision-proof dual angular louvers for strength and maximum free area * Margin edges are 7/8" projection for baseboard installation * Soft White with color matching screws Options * 1133 - 1/3" spaced dual angular louvers * 1175 - added mullion stiffeners for greater strength * Standard Color

Adjustable directional dampers with shut-off

Minimum size 4"x4"

165° standard * All sizes utilize one main curtain stay * Galvanized finish h3

Volume Damper Low-Leak OBD 3000-0BDLL-36X24 T-Bar Attractive concentric ring deflects airh3. 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.