I have a 30-year old, Gerber, single-handle, tub/shower combo. The tub spout drips. I removed the cartridge and took it to the plumbing supply house and they gave me a replacement cartridge. I reassmbled the single handle combo, and the tub spout still drips (same as before).
Thanks for the reply. Plumbing Supply provided an OEM part. I put the old one back in, when I saw it leaked the same. Happy Friday.