4" Round Vertical Mount Fire Damper 2649-48 Residential Registers & Grilles 102 - two way

102 - two way

NGD - Narrow ceiling grid dimples for 9/16" T-Rails

3 or 4 way air patterns from face * One size fits 6" thru 16" (collar by others) * Soft White

AA-HVL Series Submittal

accepts 6"-16" collar (collar by others)

4" Round Vertical Mount Fire Damper 2649-48 Residential Registers & Grilles 102 - two wayh3. 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