4 Pack 4 Inch Round Electrical Box Covers with 1/2 Inch Knockout - Metal Junction Box Covers for 4" Octagonal & Round Boxes - Ideal for Home Wiring, Electrical Outlets, and DIY Projects

You can cover bare electrical boxes with box covers. Box covers enclose the electrical box, securing wiring connections while also providing a means to mount various electrical devices. Whether your box is outside or inside, it’s vital to cover an electrical box. Open wires may tangle together, causing a faulty connection that can overheat Our round knockout cover is used to close a 4" octagon metallic box while allowing the installation of a 1/2"steel conduit. The round cover plate provides an easy way to cover or terminate exposed electrical wires

【Standard Size】Diameter 4inch, designed to cover 4 inch octagonal or round box, make the electrical box safe and pleasing to the eye. These electrical box covers offer a 1/2 in. knockout in the center for easy access into the box

【Premium Material】Made of thick galvanized steel, sturdy and durable, the metal 4" round box covers avoid bending or rusting easily

【Easy Installation】The keyhole shaped mounting hole allows for quick installation of cover without removing the box screws(no screws included)

【Useful Home Gadget】House switches or receptacles, help to prevent children or pets from accidental electrocution

【2 Year Warranty】If you receive any broken item or have question, contact us any time and we will do our best to provide you friendly service