Aluminum Door Grille 4100-24X22 Commercial available with two or four

available with two or four diffusers per panel

listed Fire-Resistance Diffuser * TVB - Thermal Vapor Blanket * Square Collar

Hinged removable extruded aluminum face frame with signature line marks

4-way flush step down steel diffuser

Aluminum Door Grille 4100-24X22 Commercial available with two or fourStandard Features * 4000 door core grille with single frame * 4100 door core grille with additional loose frame * . 060 T6 extruded aluminum construction * Completely vision proof * High air capacities * Will accommodate door thickness ranging from 1 1 4" to 2 1 4" * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * Driftwood Tan Options * 1310 Series stainless steel door grille * Tamper proof screws *