Valley? Help Identifying shower valve

[gofordavidg]

Hi everyone I am currently trying to help my mother with a leaky shower. It's a one handle shower with no spout. From all the videos it sounds like I just need to change the cartridge; however, there are no identifying marks on the valve or on any of the products inside the valve. I've taken some pictures and I honestly wouldn't even call this a cartridge when compared to the other products I've seen. Any help identifying the brand so I know what to purchase and replace it with would be of great help.

Please note that the last photo is what I found that goes inside the valve.

Links to the photos I took.
https://ibb.co/sJdRzK7
https://ibb.co/72KH4Yr
https://ibb.co/BrpcT0g
https://ibb.co/7KjHF94
https://ibb.co/zV3X3Cx
https://ibb.co/HxhG2x4
https://ibb.co/3CtHdBJ

 

[hj]

The very last one is the ONLY one that would help identify it, and even that may only be part of it, but it COULD be a Valley "cartridge" which is available at big box and hardware stores, along with the seat and springs which you did NOT show.

Here is a Valley with the handle.

From another Valley post.

V6680

 

[Sponsor]

 

[gofordavidg]

The very last one is the ONLY one that would help identify it, and even that may only be part of it, but it COULD be a Valley "cartridge" which is available at big box and hardware stores, along with the seat and springs which you did NOT show.

Thank you for your response I'll check it out.

 

[gofordavidg]

I found one online for $11 along with the seats and springs for $6 with free shipping I had them shipped to me the next day. It took me about a total of 10 minutes to turn off the water and replace the cartridge. I now no longer have a single drop of water coming from the shower when it is in the off position. Very happy and thank you, couldn't have done it without you.