Opposed Blade Volume Damper 3000-0BD-54X12 Specialty Products Hand operated level for easy

Hand operated level for easy filter access and cleaning

contour molded fiberglass back with a foil barrier backing

3 or 4 way patterns * Spring push release for easy access to adjust pattern controllers * Round No Labor Collar sizes: 6-10"

450 Series Submittal

Standard Features * 2633 - Square or rectangular out-of-airstream fire damper for vertical mount only

Opposed Blade Volume Damper 3000-0BD-54X12 Specialty Products Hand operated level for easyh3. 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.