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Ships within 48 hours · Estimated delivery Nov 11 - Nov 16
Product sizes available to fit spiral pipe diameters 8” – 48
All steel construction
22 gauge galvanized steel roll formed frame
Diffuser available in sizes 6×6 through 20×20
1” rim size (2” larger than nominal duct size / order size)
4" Round Horizontal/Vertical Fire Damper 2650-20 Smoke-Fire Damper Product sizes available to fith3. Standard Features * 2649 Round damper for vertical mount only. Available 4" thru 52" round. * 2650 Round spring actuated (6) damper for vertical or horizontal mount. Available 4" thru 52" round. * 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
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