Opposed Blade Volume Damper 3000-0BD-24X32 Specialty Products Square collar designed for 22"

Square collar designed for 22" x 22" duct

inner dimension and outside dimension sizes available * Tamper proof screws * Standard Color

Countersunk mounting holes for flush appearance with color matching Phillips Pozidriv screws

904 - Double Deflection Adjustable Aluminum Blade Grille for a 48" x 18" Duct Opening (front blades parallel to shortest dimension)

* 2602 - Square or rectangular spring actuated (6) for horizontal or vertical mount

Opposed Blade Volume Damper 3000-0BD-24X32 Specialty Products Square collar designed for 22"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.