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Reinforced welded core and extra supports for heavy duty application
425 Series Engineering/Performance Data
080") Aluminum Construction 1/8" GA (
Individually welded 14 guage diffusion bars
Parallel Blade Volume Damper 3000P-44X24 Residential Registers & Grilles Reinforced welded core and extrah3. 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
