Truaire C166-VPB 04X10 4 in. H X 10 in. W 1-Way Polished Steel Floor Diffuser (Duct Opening Measurements) The Truaire C166-VPB 04X10 Decorative Floor Grille is a 4-inch vent designed for HVAC systems. With a duct opening measurement of 4 x 10 inches, this floor grille is both functional and stylish. Its decorative design adds a touch of elegance to any room while effectively ventilating the space. Perfect for business and industrial settings, this vent is a reliable and efficient solution for maintaining air circulation. Features: Brand: Tru Aire Part Number: C166-VPB 04X10 Product Type: Floor Diffuser Air Deflection: 1-Way Finish: Polished Material: Steel Magnetic: No Paintable: No Adjustable: No Packaging: Shrinkwrapped Dimensions: Width: 10 in. Height: 4 in. Depth: 2-11/16 in.