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I have a house where the pipes are all PVC. I have one tube running to my shower head and I need to connect it to the valve. All the valves I see online have 3 connectors. I only need one and it will be being connected to a single piece of PVC tubing. What do I need to look for when I am purchasing a new valve and handle?

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  • I'm not sure I understand. Any shower valve will have three connections (two in, one out), and adapting PVC to NPT or whatever shouldn't be terribly difficult. You probably won't find a valve designed for PVC.
    – isherwood
    Commented May 2, 2023 at 16:41
  • No it’s only in. Just one single tube no extras. One to the valve and one to shower. But the pvc is already concreted into the wall
    – Jet
    Commented May 2, 2023 at 16:55
  • If there isn't a hot supply and a cold supply, only an "out to shower head" then no shower valve in the world will work. As for "concreted into the wall" that's a needless complication that may have to be solved with a masonry chisel, but perhaps a union would work. But it won't matter without a hot and cold supply to the valve.
    – Ecnerwal
    Commented May 2, 2023 at 16:58
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    It sounds like you only need a simple on/off valve instead of a shower(or any hot/cold) mixing valve. A bit chancely to depend on a heater itself not to boil you.
    – crip659
    Commented May 2, 2023 at 17:05
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    I’m in Costa Rica. Where showers are always an electrocution risk :) or boiling to death risk
    – Jet
    Commented May 2, 2023 at 17:07

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Is this one of the shower units with its own water heater, as found in the UK and other places where whole-house hot water may not be available? If so, you need an appropriate pipe or hose to connect this cut-off valve to the shower's input.

This valve appears to use hose thread. The shower's input may use hose thread (as would a washing machine) or pipe thread. If it's hose thread, you just buy a short hookup hose such as those used for washing machines, attach both ends, and you're done. If the shower connection is pipe thread, you would need an adapter, probably available the same place you buy that hose. If you add a photo of the shower's connection, we may be able to give you more specific advice.

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