Volume Damper Low-Leak OBD 3000-0BDLL-66X52 Commercial Ceiling opening must be 4”

Ceiling opening must be 4” larger in length and width than the nominal duct size

Spiral Diffuser Radius Flush Mount Diffuser Single Deflec

Standard Features * Double deflection aluminum wall or ceiling register * Heavy gauge aluminum frame * Individually adjustable extruded aluminum airfoil blades * Allows for spot or normal air diffusion * Hidden mounting mechanism * White Options: * Standard Color or Designer Color Finish available on this product

Square or rectangular for vertical mount only

Designed for return applications and as a vented access door to equipment

Volume Damper Low-Leak OBD 3000-0BDLL-66X52 Commercial Ceiling opening must be 4”h3. 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.