![Amazon.com: Stimpson D3833SZ1000 Electric Knockout Plug Steel Zinc Plated Durable, Reliable, Heavy-Duty Fits 1" Hole Trade Size (D3833SZ) (1,000 Pieces) : Tools & Home Improvement Amazon.com: Stimpson D3833SZ1000 Electric Knockout Plug Steel Zinc Plated Durable, Reliable, Heavy-Duty Fits 1" Hole Trade Size (D3833SZ) (1,000 Pieces) : Tools & Home Improvement](https://m.media-amazon.com/images/I/71FT584eY0L.jpg)
Amazon.com: Stimpson D3833SZ1000 Electric Knockout Plug Steel Zinc Plated Durable, Reliable, Heavy-Duty Fits 1" Hole Trade Size (D3833SZ) (1,000 Pieces) : Tools & Home Improvement
T&B® 1454 Industrial Fitting Locking Knockout Plug, 1-1/4 in, For Use With IMC/Rigid Conduit, Thermoplastic | Steiner Electric Company
![Gardner Bender 50-Pack 1-in Chrome Metal Electrical Box Knockout Plug in the Electrical Box Knockout Plugs department at Lowes.com Gardner Bender 50-Pack 1-in Chrome Metal Electrical Box Knockout Plug in the Electrical Box Knockout Plugs department at Lowes.com](https://mobileimages.lowes.com/productimages/75e83bc6-75f2-4b55-a920-fd97f9a2814a/43494238.jpg?size=pdhism)
Gardner Bender 50-Pack 1-in Chrome Metal Electrical Box Knockout Plug in the Electrical Box Knockout Plugs department at Lowes.com
![Amazon.com: (10 Pack) 1-1/4" ID Hole Knockout Locking Plugs for Panels - Nylon Plastic 1.25 Inch ID Round 1-3/8" Head Diameter - for Panel Thickness .016" - .125" | Body n Sheet Amazon.com: (10 Pack) 1-1/4" ID Hole Knockout Locking Plugs for Panels - Nylon Plastic 1.25 Inch ID Round 1-3/8" Head Diameter - for Panel Thickness .016" - .125" | Body n Sheet](https://m.media-amazon.com/images/I/61q68Ns0mnL.jpg)
Amazon.com: (10 Pack) 1-1/4" ID Hole Knockout Locking Plugs for Panels - Nylon Plastic 1.25 Inch ID Round 1-3/8" Head Diameter - for Panel Thickness .016" - .125" | Body n Sheet
![Sigma ProConnex 2-in Zinc-plated Steel Knockout Seal Conduit Fittings in the Conduit Fittings department at Lowes.com Sigma ProConnex 2-in Zinc-plated Steel Knockout Seal Conduit Fittings in the Conduit Fittings department at Lowes.com](https://mobileimages.lowes.com/productimages/9e53ca26-be18-4643-bc64-6ba2fc0fba23/13199001.jpg)