Parallel Volume Damper Low Leak 3000PLL-72X48 Step Down Ceiling Diffuser w/ Tool Operated Opposed Blade

w/ Tool Operated Opposed Blade Damper

1 1/2 hour fire resistance rating

951 Series Engineering/Performance Data

945 Series Submittal

cross bars

Parallel Volume Damper Low Leak 3000PLL-72X48 Step Down Ceiling Diffuser w/ Tool Operated Opposed Bladeh3. 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