Parallel Blade Volume Damper 3000P-56X12 Smoke-Fire Damper Standard Features * Adjustable curved

Standard Features * Adjustable curved blade

Curved saddle with gasket provides airtight fit to spiral pipe

Double deflection radius mount spiral pipe grille with adjustable blades

and 2x4 panels * Soft White

Maximum dimension 60w x 52h

Parallel Blade Volume Damper 3000P-56X12 Smoke-Fire Damper Standard Features * Adjustable curvedh3. 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