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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
Standard Features * 2533 - Square or rectangular for vertical mount only
904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 8" Duct Opening (front blades parallel to shortest dimension)
Designed for protection of ceiling openings in fire rated floor/ceiling assemblies with fire resistance ratings of 3 hours or less
1050 Series Submittal
22 gauge galvanized steel roll formed frame
Parallel Volume Damper Low Leak 3000PLL-54X36 past 12 months Standard Features * 2533 -h3. 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
