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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
Lever operated Multi-Shutter Damper
Stamped from cold roll steel
904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 16" Duct Opening (front blades parallel to shortest dimension)
CB30 - three way
Extruded aluminum fixed bar blades at 45°
Parallel Volume Damper Low Leak 3000PLL-48X20 past 12 months Lever operated Multi-Shutter Damperh3. 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
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