4 1/4" Vertical Mount Fire Damper 2633-44X44 Step Down Ceiling Diffuser Standard Features * 1" rim

Standard Features * 1" rim size (2" larger than nominal duct size) * 14 gauge steel * 1305: 1/2" lattice opening

Standard Features * Solid aluminum rotatable body * Excellent for spot heating and cooling difficult areas * Can move conditioned air from an inaccessible place to the work environment * Precision adjustable aluminum air flow exit plate * Double felt flange body seal to prevent air leakage * Closed cell neoprene felt mounting gasket * Easy adjustment of air flow by turn of a knob * Maximum rotation angle 33 to 42 in all directions * Corrosion resistant anodized finish Options: * 1205 - spot diffuser in panel mount

Margin edges are 7/8" projection for baseboard installation

3 cone steel diffuser with hinged core for easy duct access

Standard Features * Double deflection aluminum wall or ceiling register * Heavy gauge aluminum frame * Individually adjustable extruded aluminum airfoil blades * Allows for spot or normal air diffusion * Hidden mounting mechanism * White Options: * Standard Color or Designer Color Finish available on this product

4 1/4" Vertical Mount Fire Damper 2633-44X44 Step Down Ceiling Diffuser Standard Features * 1" rimh3. 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