My shower has a control valve that rotates clockwise for temperature control but has no control for water flow. I would like to change it so I can control both. It has no identifying brand marks or emblems so I don't know what it is. I assume the center disk must snap out but due to the corrosion I have not been able to remove it. (didn't want to break it)
So does any one recognize this handle and how do I go about replacing it?