Help with shower Cartridge model and removal process

[Gaurav Jain]

Hi, My bath shower is not giving enough hot water. I am looking to change the cartridge but I don't know the process and cartridge model number of it. This is the first time I am trying to do this. Can someone able to help me with?
1. What is the Cartridge model by looking at the pics?
2. What is the process to remove it as I am not seeing any screws?

I am attaching few photos for reference. Appreciate your help in advance .

Gaurav

 

[frodo]

remove the rest of the trim
then post a picture, looks like a moen

 

[Rickyman]

Looks like a Price Pfister Avante

 

[Gaurav Jain]

Thank you so much for your response. Let me try to remove the trim. But yes, looks like Price Pfister model!

 

[SHR]

Yes, Rickyman called it, Price Pfister Avante. Call Pfister Faucet customer service and have them send you a new cartridge. Usually free!