4 1/4" Vertical Mount Fire Damper 2633-34X34 Smoke-Fire Damper Check Out The All About

Check Out The All About Spirals page

Mounting holes with color matching 2" baseboard Phillips screws

Dampers above 80 square inches free area will be provided with blade insulation

Galvanized Finish

4 1/4" Vertical Mount Fire Damper 2633-34X34 Smoke-Fire Damper Check Out The All Abouth3. 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