58179 2-1/2-Inch Hole Nylon Knock Out Seal, Black, 2-Pack
Special Features
- The knockout seal is ideal for electrical assemblies and can be used for covering knockout holes in electrical boxes
- The nylon knock-out seal features tool-free installation that can be placed easily by hand
- The seal features a high quality nylon that offers sturdy, reliable performance and corrosion resistance
- The gray color is designed to replicate the look of finished steel
- Comes with two seals, featuring a 2" trade size and fits a 2-1/2" diameter hole
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