Aluminum Door Grille 4100-34X18 Finish:Designer Color - Velvet Black TVB - Thermal Vapor Blanket

TVB - Thermal Vapor Blanket

round collar only) * 830 OR - factory installed opposed radial damper (sizes 6"-14") * 830 FR - U

Standard Features * Heavy duty 16 gauge steel construction * Blades run parallel to longest dimension given * Gym Grade - includes welded core and extra supports for heavy duty application * Mounting holes for sidewall and ceiling application * Soft White Options * No mounting holes * For opposed blade damper

450 Series Submittal

Aluminum Door Grille 4100-34X18 Finish:Designer Color - Velvet Black TVB - Thermal Vapor BlanketStandard 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 *