4 1/4" Vertical Mount Fire Damper 2633-48X8 T-Bar 2x4 T-Bar (22" x 46"

2x4 T-Bar (22" x 46" duct)

½ × ½ × ½ Aluminum lattice

blades prevent metal on metal rattle

Available in even sizes 6" to 20" and 24"

2750 Series Submittal

4 1/4" Vertical Mount Fire Damper 2633-48X8 T-Bar 2x4 T-Bar (22" x 46"h3. 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