2" Horizontal/Vertical Mount Fire Damper 2534-12X8 Step Down Ceiling Diffuser inner dimension and outer dimension

inner dimension and outer dimension sizes available * Tamper proof screws * Standard Color

850 Series Engineering/Performance Data

3/16” holes on 1/4” staggered centers Extruded aluminum frame with signature line marks Perforated material 58% free area Countersunk mounting holes for flush appearance with color matching Phillips posi- drive screws Rust resistant pre-coat with durable powder finish Soft White

1 1/2 hour fire resistance rating

904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 8" Duct Opening   (front blades parallel to shortest dimension)

2" Horizontal/Vertical Mount Fire Damper 2534-12X8 Step Down Ceiling Diffuser inner dimension and outer dimensionh3. Standard Features * 2533 Square or rectangular for vertical mount only. Maximum dimension 48w, 41h. * 2534 Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 29h. * UL and California State Fire Marshall approved * 2" thinline frame * 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