Volume Damper Low-Leak OBD 3000-0BDLL-44X44 T-Bar 1/2" spacing dual angular louvers

1/2" spacing dual angular louvers for strength and maximum free area

Standard Features *Surface mount diffuser * Nylon bushings for easy adjustment and quiet setting of steel blades * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Single deflection diffuser with adjustable steel blades * Steel blades are parallel to longest dimension * Allows 2-way air deflection on one plane * Soft White Options * 931 O - with recessed screwdriver operated opposed blade damper * 1331 and 1332 Series - stainless steel single deflection * Tamper proof screws * Standard Color or Design Color Finish available on this product

Countersunk mounting holes for flush appearance with color matching Phillips posi- drive screws

One piece curved frame with gasket fits flush to spiral pipe

Louvers will be Parallel to the First Dimension

Volume Damper Low-Leak OBD 3000-0BDLL-44X44 T-Bar 1/2" spacing dual angular louversh3. 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.