Shower Valve Identification

[Walter Cook]

I was hoping someone could identify this old American Standard Shower Valve. No cold coming through this one and needs replacing. Can anyone identify what valve this is?
Updated: I pulled this apart and never have seen a valve like this. It’s ceramic triangle.

 

[Tuttles Revenge]

Few google searches turns up this being a AmStd UltraMix shower valve. I found a couple cartridges available so since I don't have experience with it I couldn't say which. Might be worth calling AmStd directly. They likely would be able to send the correct parts.

 

[Sponsor]

 

[Walter Cook]

I was hoping someone could identify this old American Standard Shower Valve. No cold coming through this one and needs replacing. Can anyone identify what valve this is?

Few google searches turns up this being a AmStd UltraMix shower valve. I found a couple cartridges available so since I don't have experience with it I couldn't say which. Might be worth calling AmStd directly. They likely would be able to send the correct parts.

Thank you