Aluminum Door Grille 4000-34X12 Step Down Ceiling Diffuser Rust resistant pre-coat with durable

Rust resistant pre-coat with durable powder finish

Adjustable directional dampers with shut-off

Margin edges are 7/8" projection for baseboard installation

All steel galvaneal construction

Standard Features * T-Bar lay-in panel with hinged perforated face * Galvaneal steel 2x2 panel with seismic hangers * Spring push release for removal of perforated face * Round No Labor Collar sizes: 6-10"

Aluminum Door Grille 4000-34X12 Step Down Ceiling Diffuser Rust resistant pre-coat with durableStandard 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 *