4" Horizontal/Vertical Mount Fire Damper 2634-36X14 Residential Registers & Grilles NGD - Narrow ceiling grid

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

REVIT FILES

Install with louvers in up or down position for best duct concealment

floors and partitions with fire resistance ratings of 2 hours or less (for ceiling application

Standard Features * Use in applications for installing round without damper * Steel galvaneal construction

4" Horizontal/Vertical Mount Fire Damper 2634-36X14 Residential Registers & Grilles NGD - Narrow ceiling gridh3. Standard Features * 2633 Square or rectangular out of airstream fire damper for vertical mount only. * 2634 Square or rectangular Spring actuated (6) out of airstream fire damper for horizontal or vertical mount. * UL and California State Fire Marshall approved * 4 1 4" standard frame style * Maximum dimension 60w, 52h * Interlocking steel roll formed blade (3) with roll formed frames (1) * Blade lock (5) * Damper manufactured from corrosion