4" Horizontal/Vertical Mount Fire Damper 2634-10X10 Smoke-Fire Damper linkage and handle enclosed in

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

3-Way and 4-Way Air Patterns

Countersunk mounting holes for flush appearance with color matching Phillips posi- drive screws

904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 30" Duct Opening (front blades parallel to shortest dimension)

120x120 multiple

4" Horizontal/Vertical Mount Fire Damper 2634-10X10 Smoke-Fire Damper linkage and handle enclosed inh3. 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