The decorative cover that goes over the hole in the wall where the shower arm protrudes is called the flange. The flange must be installed before you attach the shower head to the shower arm. Flanges rarely need replacing unless they become rusted or corroded. Clip-style flanges don't require you to remove the shower head. They clip around the shower arm pipe and can be slid back against the wall. Non-clipping flanges must be installed over the end of the pipe.
Things You'll Need
- Adjustable pliers
- Piece of fabric
- Teflon tape
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Remove the shower head from the shower arm with a pair of adjustable pliers by placing the jaws of the pliers over the nut and turning it counterclockwise. Cover the nut with a piece of fabric to protect it from scratching.
Slide the flange over the end of the shower arm and along its shaft until it seats against the wall. No special adhesive or process is needed to hold it there. It just sits on the pipe in front of the hole in the wall. It's job is to hide the hole.
Reinstall the shower head using the pliers.