4" Horizontal/Vertical Mount Fire Damper 2634-18X6 T-Bar Front blades parallel to shortest

Front blades parallel to shortest dimension

Standard Features * Extruded

Nylon bushings on adj

Install with louvers in up or down position for best duct concealment

700 CB20 - two way

4" Horizontal/Vertical Mount Fire Damper 2634-18X6 T-Bar Front blades parallel to shortesth3. 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