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Ships within 48 hours · Estimated delivery Sep 28 - Oct 3
For damper free area chart A click here * 2563 - Out-of-Airstream fire door
3-Way and 4-Way Air Patterns
Stamped steel face with roll formed frame
Center margins are mounted on the backside of the grille for a streamlined continuous look
Hand operated lever for easy filter access
Parallel Volume Damper Low Leak 3000PLL-60X40 Residential Registers & Grilles For damper free area charth3. 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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