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Lever operated multi-shutter damper
Opposed Blade Damper standard on 4" widths
Extruded aluminum surface mount frame with signature line marks
All component parts
Designed for large volume air delivery
2" Round Vertical Mount Fire Damper 2549-12 Specialty Products Lever operated multi-shutter damperh3. Standard Features * 1 1 2 hour rated fire damper * 2549 Round damper for vertical mount only. Available 4" thru 40" round. * 2550 Round Spring actuated (6) damper for vertical or horizontal mount. Available 4" thru 28" round. * UL and California State Fire Marshall approved * 2" thinline frame * Interlocking steel roll formed blade (3) with roll formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G
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