The gasket inside my otherwise perfectly serviceable reservoir cap has mysteriously turned to goo. Does anyone know a source for replacements? I know the whole caps are available and not very expensive, but I'm trying to minimize my contribution to our wasteful throw away society. Why replace the cap when just the gasket would do?

TIA

No gaskets I know about.

I should have checked the PET first. Found a part # 901-355-908-00 With that, it was easy to find.

Let me know I can make them in Viton pretty easily if not readily available