4" Horizontal/Vertical Mount Fire Damper 2634-44X44 Step Down Ceiling Diffuser Standard Features *Surface mount return

Standard Features *Surface mount return air grille * 0 fixed blades parallel to shortest dimension * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * 938 O - recessed screwdriver operated opposed blade damper * No Labor Collar (square sizes only) * 900 T - T-Bar mount * 905 HD - reinforced construction * 905 IS - insect screen * 1335-1338 Series - stainless steel version * Tamper proof screws

Ideal for residential and light commercial application

Spiral Diffuser Radius Flush Mount Diffuser Single Deflection with Damper

Hand operated lever for easy filter access and cleaning

4" Horizontal/Vertical Mount Fire Damper 2634-44X44 Step Down Ceiling Diffuser Standard Features *Surface mount returnh3. 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