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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
* 2550 - Round Spring actuated (6) damper for vertical or horizontal mount
Adjustable steel curved blades
904 - Double Deflection Adjustable Aluminum Blade Grille For a 48" x 24" Duct Opening (front blades parallel to shortest dimension)
Individually welded 14 guage diffusion bars
Parallel Volume Damper Low Leak 3000PLL-54X52 Accessories * 2550 - Round Springh3. 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
