Thanks Diehard. Not sure why it was not click able for me.
That appears to me to be a Moen. As far as I know, the model number doesn't matter, since they all use the same cartridge. The only difference is whether it is a Posi-Temp valve (you rotate the handle to turn the water on and off) or a Moen-Trol valve (you have to pull or push the handle to turn the water on or off).