2" Vertical Mount Fire Damper 2501-26X10 Smoke-Fire Damper One-piece removable slide damper for

One-piece removable slide damper for off-season closure

CSFM California State Fire Marshal listed

904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 4" Duct Opening  (front blades parallel to shortest dimension)

Note: Listed Size Is Nominal Duct Opening / Nominal Filter Size

2" Vertical Mount Fire Damper 2501-26X10 Smoke-Fire Damper One-piece removable slide damper forh3. Standard Features * 2501 Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * 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