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24 Pcs 1/2 inch Knockout Seal Electrical Box Knockout Plugs Removable Seals for Conduit Pipe Assorted Sizes to Fit Unused Electrical Box Openings

4.4 (7) Write Review
Free shipping on orders over $29.99

$11.99

$ 5 .99 $5.99

In Stock

1.Style:1 Inch


  • 【Seamlessly Sealed, Dust and Water Resistant】Crafted from high-quality materials, our electrical box knockout plugs form a snug fit over the electrical box opening, effectively preventing the intrusion of dust and moisture. This protects internal wiring from environmental impacts, prolonging the service life of your equipment.
  • 【Rugged Durability, Long-lasting Protection】Subjected to rigorous testing, our product is wear-resistant and anti-aging. Even under harsh conditions, the electrical knockout punch set maintains stable performance, offering long-term and dependable protection for your electrical box.
  • 【Easy Installation, Versatile Compatibility】Featuring a streamlined design, installation is swift and straightforward. It is equally adept at handling scenarios in industrial settings as well as home renovations. Whether your needs are professional or personal, this knockout seal is up to the task, catering to your diverse requirements.
  • "【Abundance at Your Fingertips】 Never run short again on crucial components for your projects. Our bulk pack of electrical box plugs provides you with the flexibility and convenience needed to efficiently manage multiple jobs without the worry of running out. From sealing unused knockouts to securing your electrical connections, our plugs deliver peace of mind and efficiency."
  • 【Professional Quality, Assured Safety】In strict compliance with international safety standards, every hole plug undergoes rigorous quality control procedures. This ensures you receive a worry-free user experience, backed by our commitment to excellence and safety.


Product Description


Larry G.
2025-08-27 10:02:46
Fit right in extra opening's in electrical boxes to seal out dirt.
Harry E. Lindler
2025-08-08 15:54:09
Just what I think that I need. Can't wait to try it out.
Shayna L
2025-06-27 21:27:56
Sturdy and great fit
Alex G. Dulude
2025-06-03 13:57:38
These ONLY fit 1” knockouts. The bag is a full bag of 1” knockouts.That said? They’re good quality and they fit tightly. They’re all galvanized, so fit in nicely with indoor boxes, and paint fairly well for outdoor/painted boxes.I got this whole big bag for less than the bag of 5 of them would have cost at Lowe’s. Definitely recommend.
DwightR
2025-05-07 14:26:15
Despite doing careful planning, I sometimes pick the wrong knockout to use on a metal electrical box. When this happens, using foil tape to close off the hole really isn't a terrific option. It's way better to have a proper metal plug to use.A box of 24 of these plugs doesn't cost much, doesn't take up much space and prevents needing to make a special trip to the hardware store to correct that error. It just makes sense to pick one up.
William Hamilton
2025-03-27 14:02:11
The display pictures should be updated to match the selected size but otherwise these are of good quality and work as intended.
Sue
2025-02-17 17:43:51
These are press in caps for large holes in electrical boxes. This fills holes that were knocked out for whatever reason. They are sturdy and well made.