4" Horizontal/Vertical Mount Fire Damper 2634-26X12 T-Bar Extruded aluminum frame with steel

Extruded aluminum frame with steel roll formed blades and steel multi-shutter damper

w/ Steel Opposed Blade Damper

2" ADC compliant round collar with bead for ease of installation

Holds up to 1" filter

4" Horizontal/Vertical Mount Fire Damper 2634-26X12 T-Bar Extruded aluminum frame with steelh3. 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