Parallel Volume Damper Low Leak 3000PLL-66X40 Residential Registers & Grilles Adjustable directional dampers with shut-off

Adjustable directional dampers with shut-off

375 Series Submittal

Back blades are parallel to the longest dimension

2750 Series Submittal

Parallel Volume Damper Low Leak 3000PLL-66X40 Residential Registers & Grilles Adjustable directional dampers with shut-offh3. 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