4 1/4" Horizontal/Vertical Mount Fire Damper 2602-14X12 Step Down Ceiling Diffuser are enclosed in the valve

are enclosed in the valve to assure trouble free operation * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Steel multi-shutter damper * Soft White Options * 845 O - steel lever operated opposed blade damper * Tamper proof screws * Standard Color

listed Fire-Resistance Diffusers * TVB - Thermal Vapor Blanket * Square collar

CB Series W/Damper R

Access door with 1-3/8" deep steel roll formed frame

4 1/4" Horizontal/Vertical Mount Fire Damper 2602-14X12 Step Down Ceiling Diffuser are enclosed in the valveh3. Standard Features * 2601 Square or rectangular for vertical mount only. Maximum dimension 60x60 single, 120x120 multiple. * 2602 Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 60x60. * 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