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Ships within 48 hours · Estimated delivery Sep 5 - Sep 10
Spiral pipe diameter must be 4” larger than Height of the duct opening
904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 8" Duct Opening (front blades parallel to shortest dimension)
Access door with 1-3/8" deep steel roll formed frame
Reinforced welded core and extra supports for heavy duty application
PERFORMANCE DATA
Parallel Volume Damper Low Leak 3000PLL-24X16 past 12 months Spiral pipe diameter must beh3. 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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