Does anyone know what model this shower cartridge is?

[blueskies]

I am trying to replace the shower cartridge because I am selling my apt and the buyer understandably asks the leaky shower to be fixed. The handle was a heck of a time to remove. I had to use a specialty tool, which actually broke, but it did remove the cover.

The problem now is unlike demonstrated on Youtube videos, I cannot free the cartridge. I used a plier and it would not budge at all.

Does anyone recognize what this model may be and could it be it is changed differently?

Thank you.

 

[JG plumbing]

Are you providing a warranty for the apt? If so I'd call a plumber. You could be chasing leaks for a while.

 

[Twowaxhack]

It’s most likely a price pfister. Please post pics of the trim pieces.