I have the exact model bathroom lavatory faucet and shower valve and I bought them in the early '90's. It is called "ceramix" and the p/n for the cartridge kit from the original installation instruction is 23526.07.007. It appears that they still sell this model although it looks a lot more streamlined, but I don't know if the cartridge is the same. I don't have the instructions for the shower valve, so I can't help you with the trim. Good luck!