I have a shower mixing valve with diverter A lever controls volumes and the round knob controls temp(Centigrade markings) I believe it is of European origin probably not Grohe It is mot Kohler Moen or American Standard The cartridge is broken It is being plumbed from above but could be from below I have many other photos if that would help Does anyone know of a Plumbing suppply house that might be good at identifing an item such as this. I do not believe that this site allows photo attachments
Thanks Al