4" Horizontal/Vertical Mount Fire Damper 2634-24X10 Accessories 1/2" spacing dual angular louvers

1/2" spacing dual angular louvers for strength and maximum free area

Square collar designed for 20” × 20” duct

Face set in an outer T-Bar filter grille frame

Use for applications with round ductwork to create a clean and easy to install finish for your round registers or diffusers

Driftwood Tan or Soft White

4" Horizontal/Vertical Mount Fire Damper 2634-24X10 Accessories 1/2" spacing dual angular louversh3. 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