A conduit junction box replacement cover for electrical conduit junction boxes. The replacement cover can replace a conventionally designed cover on a conduit junction box that contains corroded or otherwise damaged threaded holes rendering the installation of a conventionally designed junction box cover difficult or costly. The removable replacement cover has a flat inside surface and a rim that overlaps the outer walls of the body of the junction box. The removable replacement cover can be installed by inserting set screws through the rim to make secure contact with the body of the junction box. A flat gasket on the inside surface of the replacement cover and positioned within the rim seals the junction box from adverse environmental conditions. The rim of the replacement cover can contain several cut-outs to permit the installation of the replacement cover on conduit junction boxes that contain one or more external hubs.

 
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