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Step 2: Remove shower arm from wall

Picture of Remove shower arm from wall
Remove your shower arm by unscrewing it out of the wall. You may need a pipe wrench (put a bunch of tape on it so you don't scratch it all up with the pipe wrench).

Now put some teflon tape (so it won't leak) on the pipe nipple and screw it in the hole. You should have about 1 inch plus threads sticking out.