Parallel Blade Volume Damper 3000P-66X22 Smoke-Fire Damper Minimum size 4"x4"

Minimum size 4"x4"

inner dimension and outside dimension available * Available in continuous lengths with butt joints * Tamper proof screws * Standard Color

2-way reversible door on rectangular sizes

Available 6

Parallel Blade Volume Damper 3000P-66X22 Smoke-Fire Damper Minimum size 4"x4"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