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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14
Extruded aluminum frame with steel roll formed blades and steel multi-shutter damper
Nylon bushings on adjustable blades prevent metal on metal rattle
For damper free area chart B click here * 2565 - Round fire door for vertical mount only
212° Fusible Link
3/16" cross bars
Parallel Volume Damper Low Leak 3000PLL-68X18 Commercial Extruded aluminum frame with steelh3. 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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