Using a 1 2 weatherproof knockout seal for outdoor boxes
You probably realized you have an extra hole in your electrical box, and now you need a 1 2 weatherproof knockout seal to keep the rain and dust out before things start shorting out. It's one of those tiny parts that you don't think about until you're standing on a ladder in the backyard, staring at an open hole in a junction box that definitely shouldn't be there. Whether you punched out the wrong spot or you're removing an old conduit run, leaving that opening exposed is just asking for trouble. ...