Parallel Volume Damper Low Leak 3000PLL-52X34 Smoke-Fire Damper 904 - Double Deflection Adjustable

904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 16" Duct Opening (front blades parallel to shortest dimension)

with color matching Phillips Pozidriv screws

3 hour fire resistance rating

060 T6 extruded aluminum construction * Completely vision proof * High air capacities * Will accommodate door thickness ranging from 1 1/4" to 2 1/4" * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Driftwood Tan Options * 1310 Series - stainless steel door grille * Tamper proof screws * Standard Color

Parallel Volume Damper Low Leak 3000PLL-52X34 Smoke-Fire Damper 904 - Double Deflection Adjustableh3. 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