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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14
For damper free area chart A click here * 2563 - Out-of-Airstream fire door
Hinged removable extruded aluminum face frame with signature line marks
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 * Double deflection diffuser * Front blades parallel to shortest dimension * Back blades parallel to longest dimension * All blades adjustable allowing 4-way flow adjustment * Soft White Options * 934 O - with recessed screwdriver operated opposed blade damper * 1333 and 1334 Series - stainless steel double deflection * Tamper proof screws * Standard Color or Design Color Finish available on this product
Available in 4" through 29" round
Installation Instructions * UL approved installation instructions
Volume Damper Low-Leak OBD 3000-0BDLL-72X30 Accessories For damper free area charth3. 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.
US$ 274.09
US$ 422.73
US$ 3368.64
