4" Stainless Steel Octagon Knockout Electrical Box Cover, Flat Metal Knockout Junction Box Cover Plate

The Airmont Steel Octagon Box Covers provides a durable and professional solution for finishing 4-inch octagon electrical boxes. Manufactured from 0.063" steel, these flat metal covers deliver strength, corrosion resistance, and clean aesthetics. Designed to fit standard 4" octagon boxes, each cover measures 4" square for proper alignment and secure mounting. Choose from blank covers for junction protection, toggle switch cutouts, duplex receptacle openings, or 1/2" centered knockout configurations for fixture applications. Built for reliability, precision fit, and long service life in both residential and commercial installations.

• HEAVY-DUTY STAINLESS STEEL – Constructed from durable 0.063" thick stainless steel for long-term corrosion resistance and dependable performance in residential and commercial environments.
• PRECISION 4-INCH FIT – Measures 4" x 4" for proper fit on standard 4" octagon electrical boxes. Flat profile provides a clean, professional finish.
• MULTIPLE CONFIGURATION OPTIONS – Available in blank, toggle switch, duplex receptacle, and 1/2" centered knockout designs to support lighting, device, and junction applications.
• KEYHOLE & SLOTTED MOUNTING DESIGN – Allows fast alignment and secure installation while reducing installation time on trim-out.
• CLEAN FINISH FOR EXPOSED INSTALLATIONS – Smooth metal surface delivers a professional appearance suitable for visible ceiling or wall-mounted box locations.