2" Vertical Mount Fire Damper 2533-32X8 Step Down Ceiling Diffuser Countersunk mounting holes for flush

Countersunk mounting holes for flush appearance

904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 20" Duct Opening (front blades parallel to shortest dimension)

back blades parallel to the shortest dimension Extruded aluminum surface mount frame with signature line marks Provides 4-way air flow on one plane Nylon bushings on adj

425 Series Engineering/Performance Data

2" Vertical Mount Fire Damper 2533-32X8 Step Down Ceiling Diffuser Countersunk mounting holes for flushh3. 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