Aluminum Door Grille 4000-30X18 past 12 months Adjustable directional dampers with shut-off

Adjustable directional dampers with shut-off

Ceramic fiber blade insulation with fiberglass cover*

Square to round 2" collar with roll formed retention bead - available in square sizes only

Double deflection radius mount spiral pipe grille with adjustable blades

1050 Series Submittal

Aluminum Door Grille 4000-30X18 past 12 months Adjustable directional dampers with shut-offStandard 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 *