4 1/4" Vertical Mount Fire Damper 2633-18X18 Residential Registers & Grilles Driftwood Tan or Soft White

Driftwood Tan or Soft White

Soft White Options

7/8” Wide x 7/8” High square holes

Square or rectangular for vertical mount only

2550 Series Submittal

4 1/4" Vertical Mount Fire Damper 2633-18X18 Residential Registers & Grilles Driftwood Tan or Soft Whiteh3. 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