TRUaire C167-MMB 04X12 Matte Black Steel Floor Register 4x12 in 1-Way Non-Adjustable The TRUaire C167-MMB 04X12 matte black steel floor register is a non-adjustable, one-way air diffuser designed for seamless integration into residential and light commercial HVAC systems. Featuring a clean, low-profile matte black finish and durable steel construction, it delivers consistent airflow while complementing modern interior flooring and baseboard designs. Sized for a standard 4" x 12" duct opening, the register includes a fixed louver pattern that directs air efficiently without the need for manual adjustment. Its robust build ensures long-term performance with minimal maintenance, making it ideal for replacement or new construction where aesthetics and reliable air distribution are priorities. Features - Non-adjustable 1-way airflow design for consistent, directed ventilation - Matte black powder-coated steel resists scratches and corrosion - Fits standard 4" x 12" duct openings with precise, flush installation - Fixed louver pattern eliminates moving parts for maintenance-free operation - Sleek, minimalist profile blends with contemporary flooring and trim - Durable steel construction ensures structural integrity over time - Ideal for supply or return applications in residential and light commercial spaces - Easy drop-in installation with standard mounting tabs - Not paintable?designed to maintain factory matte black finish - Coordinates with TRUaire?s architectural grille and register collection Specifications - Brand Name: TRUaire - Model Name: TRUaire C167-MMB 04X12 - Part Number: C167-MMB 04X12 - Product Type: Floor Register - Material: Steel - Finish: Matte Black - Air Deflection: 1-Way - Adjustable: No - Paintable: No - Magnetic: No - Duct Opening Size: 4 x 12 in - Overall Dimensions: 4 in H x 12 in W x 2-11/16 in D - Country of Origin: United States - UPC: 803492202309 - Manufacturer: TRUaire Product Application This floor register is used by HVAC contractors, builders, and homeowners in finished living spaces such as living rooms, bedrooms, hallways, and offices where quiet, reliable airflow and visual harmony are essential. It is typically installed over supply or return ducts during new construction or as a direct replacement for outdated or damaged grilles. The fixed louver design ensures air is directed consistently into the room without user intervention?ideal for areas where adjustable dampers are unnecessary or prone to tampering. Its matte black finish provides a subtle contrast against light flooring or a seamless match with dark interiors, enhancing room aesthetics without drawing attention. Trusted for its durability and clean lines, this register delivers functional performance and understated elegance in everyday comfort systems.