4" Round Vertical Mount Fire Damper 2649-28 Commercial View or print our product

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955 Series Submittal

904 - Double Deflection Adjustable Aluminum Blade Grille For a 32" x 18" Duct Opening (front blades parallel to shortest dimension)

*Pricing is based on standard 14 GA steel construction

425 Series Engineering/Performance Data

4" Round Vertical Mount Fire Damper 2649-28 Commercial View or print our producth3. 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