How do I change a delta shower cartridge - The shower part is round with one handle.

Hi Dave...

There are a few different types of Delta shower valves.

Check out the pics. Below... one of them should be similar to your valve.

You will need to shut off the water supply, remove handle and then access the cartridge and the springs and seats OR just the springs and seats... depending on your valve.

Let me know if you have more questions...

MARK

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