Tru Aire C167-MMB 04X12 Matte Black Steel Floor Register 4'' x 12'' in. (Duct Opening Measurements) The Truaire C167-MMB04X12 Decorative Floor Grille is a sleek black vent designed by the brand TRUAIRE. This model features a 4-inch duct opening measurement, making it suitable for HVAC systems in various industrial and commercial settings. Its stylish design adds a touch of elegance while effectively circulating air throughout the space, ensuring a comfortable environment for occupants. Perfect for those looking to upgrade or replace their current floor grilles with a high-quality and visually appealing option. Features: Brand: Tru Aire Part Number: C167-MMB 04X12 Product Type: Floor Diffuser Air Deflection: 1-Way Finish: Matte Material: Steel Adjustable: No Paintable: No Magnetic: No Dimensions: Height: 4 in. Width: 12 in. Depth: 2-11/16 in.