Parallel Volume Damper Low Leak 3000PLL-60X34 T-Bar Nylon bushings for easy adjustment

Nylon bushings for easy adjustment and quiet setting of blades running parallel to shortest dimension

All Aluminum Construction

Countersunk mounting holes for flush appearance with stainless sheet metal screws

3-hour fire resistance rating

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

Parallel Volume Damper Low Leak 3000PLL-60X34 T-Bar Nylon bushings for easy adjustmenth3. 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