Aluminum Door Grille 4000-12X8 Residential Registers & Grilles Standard Features * Heavy guage

Standard Features * Heavy guage cold roll steel (same as 350 series) * Ideal for return air in the toe space areas between kitchen cabinets

Double deflection radius mount spiral pipe grille with adjustable blades

Front blades are parallel to the shortest dimension

BD - field installable Bowtie Damper (available on even sizes 6"-14")

Holds up to a 1" filter (not included) with filter retention tabs (FG1)

Aluminum Door Grille 4000-12X8 Residential Registers & Grilles Standard Features * Heavy guageStandard 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 *