Parallel Blade Volume Damper 3000P-34X28 Residential Registers & Grilles Square collar designed for 22"

Square collar designed for 22" x 22" duct

* 2650 - Round spring actuated (6) damper for vertical or horizontal mount

Standard Features * 2501 -Square or rectangular for vertical mount only

Standard Features * Field installable butterfly damper * Available in sizes 6

Parallel Blade Volume Damper 3000P-34X28 Residential Registers & Grilles Square collar designed for 22"h3. 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