Knock-Out Seals are designed to cover exposed knock-out holes in steel boxes and other metal enclosures. The 1/2 in. Knock-Out Seals (4-Pack) offer corrosion resistance. They are convenient and easy to use.
- Covers knock-out holes in metal enclosures
- Zinc-plated steel
- Corrosion resistant
- Designed for indoor and outdoor use
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