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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
Divided 2-way multi-louver and combination shut-off
* UL and California State Fire Marshall approved * 4-1/4" standard frame style * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3
3 hour fire resistance rating
Options (must specify when ordering)
listed Fire-Resistance Diffuser * TVB - Thermal Vapor Blanket * Square Collar
Parallel Volume Damper Low Leak 3000PLL-50X22 T-Bar Divided 2-way multi-louver and combinationh3. 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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