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Lever operated Multi-Shutter Damper
Countersunk mounting holes for flush appearance with color matching Phillips Pozidriv screws
UL listed and tested in accordance with UL Standard 555C
CB30 - three way
Standard Features * 4000 - door core grille with single frame * 4100 - door core grille with additional loose frame *
4 1/4" Vertical Mount Fire Damper 2633-18X10 Smoke-Fire Damper Lever operated Multi-Shutter Damperh3. 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
