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Spring actuated curtain-type fire damper with 2 1/4" round connection for horizontal or vertical mount
Access door with 1-3/8" deep steel roll formed frame
Submittal Drawing
and handle
Parallel Volume Damper Low Leak 3000PLL-68X52 Residential Registers & Grilles Spring actuated curtain-type fire damperh3. 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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