4 1/4" Vertical Mount Fire Damper 2633-24X16 Accessories alternate frame is extruded aluminum

alternate frame is extruded aluminum with signature line marks

2550 Series Engineering/Performance Data

Square Collar

Tool Operated Opposed Blade Damper

Adjustable baffle controllers to direct airflow horizontally or vertically

4 1/4" Vertical Mount Fire Damper 2633-24X16 Accessories alternate frame is extruded aluminumh3. Standard Features * 2633 Square or rectangular out of airstream fire damper for vertical mount only. * 2634 Square or rectangular Spring actuated (6) out of airstream fire damper for horizontal or vertical mount. * UL and California State Fire Marshall approved * 4 1 4" standard frame style * Maximum dimension 60w, 52h * Interlocking steel roll formed blade (3) with roll formed frames (1) * Blade lock (5) * Damper manufactured from corrosion