4" Round Vertical Mount Fire Damper 2649-48 Residential Registers & Grilles 3-Way and 4-Way Air Patterns

3-Way and 4-Way Air Patterns

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

Standard Features * Designed for return or exhaust applications * 3/16" holes on 1/4" staggered centers * Heavy gauge steel * Seismic support holes * 1x2

Available 6

53% free area * 1306: 3/4" lattice opening

4" Round Vertical Mount Fire Damper 2649-48 Residential Registers & Grilles 3-Way and 4-Way 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