4" Round Horizontal/Vertical Fire Damper 2650-34 past 12 months * Countersunk mounting holes for

* Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Driftwood Tan Options * TD Series - with damper

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with 57% free area

450 Series Submittal

w/ Tool Operated Opposed Blade Damper

4" Round Horizontal/Vertical Fire Damper 2650-34 past 12 months * Countersunk mounting holes forh3. 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