4 1/4" Vertical Mount Fire Damper 2633-28X10 past 12 months Accessory to the 90 Series

Accessory to the 90 Series

linkage and handle enclosed in valve to assure trouble-free operation

Low profile design for tight mechanical areas

Maximum dimension 48w

Heavy Duty Construction

4 1/4" Vertical Mount Fire Damper 2633-28X10 past 12 months Accessory to the 90 Seriesh3. 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