4 1/4" Vertical Mount Fire Damper 2633-18X18 Residential Registers & Grilles Square or rectangular for vertical

Square or rectangular for vertical mount only

Standard Features * 1/2" spacing dual angular louvers * 22 & 20 gauge cold roll steel * Install with louvers in up or down position for best duct concealment * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * 1033 - 1/3" spacing available in limited sizes * A-1050 -

Driftwood Tan or Soft White

Hinged removable extruded aluminum face frame with signature line marks

4 1/4" Vertical Mount Fire Damper 2633-18X18 Residential Registers & Grilles Square or rectangular for verticalh3. 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