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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
Standard Features * 2601 - Square or rectangular for vertical mount only
Square collar designed for a 20” × 20”
INSTALLATION INSTRUCTIONS
904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 18" Duct Opening(front blades parallel to shortest dimension)
For damper free area chart A click here * 2563 - Out-of-Airstream fire door
Parallel Volume Damper Low Leak 3000PLL-44X20 Residential Registers & Grilles Standard Features * 2601 -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
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