2" Vertical Mount Fire Damper 2533-26X26 Step Down Ceiling Diffuser inner dimension and outer dimension

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

Free area equals more than 75% of nominal size

904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 4" Duct Opening  (front blades parallel to shortest dimension)

700 CB30 - three way

SUBMITTAL 600TFG Series Submittal

2" Vertical Mount Fire Damper 2533-26X26 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