The 3/4 in. Knock-Out Seals (4-Pack) are used to cover exposed knock-out holes in steel boxes and other metal enclosures. Suitable for indoor and outdoor use. The seals are made with zinc-plated steel for strength.
- Covers exposed knock-out holes
- Corrosion-resistant zinc-plated steel construction
- For use in steel boxes and other metal enclosures
- Suitable for indoor and outdoor applications