The Knock-Out Seal covers exposed knock-out holes in metal enclosures, such as steel outlet boxes. The seal is crafted with zinc-plated steel for strength and can be used inside and outside.

- Designed to cover exposed knock-out holes in steel outlet boxes and other metal enclosures
- For indoor and outdoor applications
- Zinc-plated steel construction
- Corrosion resistant
- Designed for fast and easy installations