Parallel Blade Volume Damper 3000P-40X26 Smoke-Fire Damper Countersunk mounting holes for flush

Countersunk mounting holes for flush appearance with color matching Phillips posi- drive screws

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

Access door with 1-3/8" deep steel roll formed frame

contour molded fiberglass back with a foil barrier backing

904 - Double Deflection Adjustable Aluminum Blade Grille For a 22" x 18" Duct Opening (front blades parallel to shortest dimension)

Parallel Blade Volume Damper 3000P-40X26 Smoke-Fire Damper Countersunk mounting holes for flushh3. Standard Features * 16 gauge galvanized channel frame * Parallel blades are cee 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. Options * 3000 PLL Low Leak Air Control