Volume Damper Low-Leak OBD 3000-0BDLL-24X16 Specialty Products 1/4” Wide x 1-27/32” High

1/4” Wide x 1-27/32” High slots

2x4 T-Bar (22" x 46" duct)

Adjustable directional dampers with shut-off

For damper free area chart B click here * 2665 - Round fire door for vertical mount only

Volume Damper Low-Leak OBD 3000-0BDLL-24X16 Specialty Products 1/4” Wide x 1-27/32” Highh3. 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.