Parallel Volume Damper Low Leak 3000PLL-14X14 past 12 months 3/16” crossbars

3/16” crossbars

Double deflection radius mount spiral pipe grille with adjustable blades

round collar only) * 830 OR - factory installed opposed radial damper (sizes 6"-14") * 830 FR - U

Standard Features * Extruded aluminum construction with steel multi-shutter damper * Margin edges are 7/8" projection for baseboard installation * Nylon bushings for easy adjustment and quiet setting of airfoil blades running parallel to shortest dimension * Countersunk mounting holes for flush appearance

Standard Features * 2633 - Square or rectangular out-of-airstream fire damper for vertical mount only

Parallel Volume Damper Low Leak 3000PLL-14X14 past 12 months 3/16” crossbarsh3. 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