4" Round Vertical Mount Fire Damper 2649-10 Specialty Products Eighteen air patterns

Eighteen air patterns

Modern step-down design with 4-way air diffusion

Standard Features * Gang-operated opposed blade radial volume control damper for use with RD Series Round Diffusers * Available in 2" increments from 6"-24"

Standard Features * 2633 - Square or rectangular out-of-airstream fire damper for vertical mount only

4" Round Vertical Mount Fire Damper 2649-10 Specialty Products Eighteen air patternsh3. 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