SIGMA - Sigma Engineered Solutions ProConnex Round Zinc-Plated Steel Knockout Seal [49155]

This versatile and durable knockout seal is crafted from high-quality zinc-plated steel, ensuring long-lasting performance in various applications. Specifically designed to securely cover and protect unused electrical box openings, it provides both safety and efficiency. Perfect for maintaining the integrity of your electrical installations, this knockout seal is an essential component for any professional or DIY enthusiast.