SIGMA - Sigma Engineered Solutions ProConnex Round Zinc-Plated Steel Knockout Seal [49151]

Seal off unused knockout holes with ease using this durable knockout seal, designed to provide a clean and secure closure. Crafted from zinc-plated steel, it offers exceptional resistance to corrosion, ensuring long-lasting performance in various environments. Ideal for electrical boxes, this knockout seal is a reliable solution for maintaining safety and neatness in your projects.