4 1/4" Vertical Mount Fire Damper 2633-48X48 T-Bar 055 T6 extruded aluminum construction

055 T6 extruded aluminum construction * Fits all Shoemaker commercial products * Controls airflow evenly * Screwdriver operated * Available in even sizes * Mill finish Options * Clips for easy installation * Soft White

904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 8" Duct Opening   (front blades parallel to shortest dimension)

Fits 1x1 ceiling grids (collar size 6"-10")

11/32” Wide x 1-27/32” High slots

4 1/4" Vertical Mount Fire Damper 2633-48X48 T-Bar 055 T6 extruded aluminum constructionh3. 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