Volume Damper Low-Leak OBD 3000-0BDLL-32X12 Specialty Products Building materials rated 2 hours

Building materials rated 2 hours or less

115T Series Engineering/Performance Data

904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 14" Duct Opening(front blades parallel to shortest dimension)

SUBMITTAL 2720 Series Submittal

Surface mount fixed blade grille with airfoil blades at 0°

Volume Damper Low-Leak OBD 3000-0BDLL-32X12 Specialty Products Building materials rated 2 hoursh3. 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.