Hi there. I am trying to find a part for my two handle shower. It is the part that fits on top of the stem. Anyone know the name of it or where I could order one? I need the brass/metal one. It is usually seen in plastic form. Thank you.

Are you asking for a handle or knob? If so, any replacement should fit. All plumbing shops have a "bone yard" of old toilet tank lids and old knobs and handles. Good luck, Tom

I am taking about the piece inside of the shower handle. The grooved plastic thing. It fits on top of the value stem and helps turn the vsalue