No shower arm? How to install a new shower arm?

[JerryLoveUser123]

So we went to Walmart and purchased a new shower head for our shower, and when we got home we realized that there wasn’t even a shower arm installed in the wall, they just screwed this shower head and secured it with a wire in place. How can we install a new shower arm so we can take a shower ? Does water come through the shower arm as well ? Looks like they have the water coming from the faucet rather than a pipe from behind the shower wall (which I assume is the shower arm, but there isn’t a lot of information out about this). Thank you in advance for any advice. Pictures attached (and yes we’re going to recaulk as well)

 

[CENTRALFL]

Do you have access to the other side of the wall?

Normally, a 1/2 inch drop ear elbow would be at the top, secured by a 2x4 or some other wood blocking. The shower arm would screw into that and water would flow through it to the shower head.

But that would be a different style of shower valve that fed the water line up, behind the wall.

Something like this:

From here: https://www.bfdrona.com/collections/bathroom-diy/products/install-a-shower-faucet
You see in step 3 the drop ear elbow.

With what you have, unless you are doing a renovation where you are breaking up the wall and changing the shower valve, I think your best bet would be to just find some holder for your shower head you have. Something like this:
Strong Adhesive and Waterproof Shower Head Holder, Adjustable Handheld Shower Holder Wall Mount Shower Bracket by Lofekea https://a.co/d/41KNX3S

If you unscrew the white shower head does water come out?

 

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[John Gayewski]

You don't have a shower you have a tub. Get a magnetic handheld or screw up slide bar.