I am ordering my pex parts and am wondering what standard tub/shower valves use on the adapter. Male or female? 1/2" or 3/4" size? I'd prefer a reputable brand but it looks like the adapters vary…
Shower Valve / Diverter pipe thread size
pexvalve
Related Solutions
The easiest way to achieve what you are looking for with what you already have is to:
- Shut off the water at the angle stop shown in your first photo (confirm that the valve is closed by opening the cold on you sink)
- Cut the copper tubing in half (the tubing between the angle stop and the second valve)
- Install the valve tee shown in your second photo (this will reconnect the cut tube)
- Test (by opening the angle valve)
- Slowly tighten the compression fittings if they are leaking
Here's a video on how to install compression fittings: Youtube video.
Just got the diverter out of the wall. It turns out the diverter was threaded in and needed to be removed. Here's a picture of the full diverter. The piece on the upper-right was what needed to be un-threaded. A pair of vice grips and a hammer did the trick:
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Best Answer
(USA - likely different in places that use other thread forms, of course) The valve is usually 1/2" FIPT, so the PEX adapter you'd need would be a 1/2" MIPT (and at the showerhead end you'll want a PEX - 1/2" FIPT Drop Ear Elbow so you can affix the shower arm attachment to the framing.)
Of course, you could actually buy a particular shower valve and know for sure.