Heath Zenith 455A-B Wired Replacement Button, Silver Rim with Lighted Pearl Center
The 455A-B wired push button insert features a silver rim with pearl center. This lighted push button has a portion that must recess into the surface it is mounted to. It requires a 5/8-Inch (or 16mm) diameter hole to be mounted properly. The plate of this push button sits flush on the surface, while the back portion of the push button recesses into the hole.