Parallel Volume Damper Low Leak 3000PLL-58X20 Specialty Products Front blades parallel to shortest

Front blades parallel to shortest dimension

Available in even sizes 6" to 20" and 24"

Zinc plated steel closure spring

945 Series Submittal

Parallel Volume Damper Low Leak 3000PLL-58X20 Specialty Products Front blades parallel to shortesth3. 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