Where to get Ball Valve Teflon Seals

[Devils_Chariot]

I was doing some spring cleaning on my brewing rig and while disassembling the ball valves to clean them I founds a couple that the PTFE seal/seat had become deformed. While it was still water tight, it had collected a thick glob of gooey wort behind it.

Looking online I can't seem to find replacement seals, but maybe I don't know what they are really called or where to get them? Any Ideas or links would be a great help.

 

[TX_Brewing]

Blichmanns spare parts page has them. I am pretty sure I have seen at least one online homebrew shop that carries them, but I can't remember where.