My homebrew keg was leaking CO2, and the brewing supply company only sells the same crappy (= non-silicone) o-rings that had just failed. They wanted something dumb like $25 for a replacement part.
Enter McMaster-Carr. For significantly less money than fixing one bad o-ring, I have a pile of replacement sets for every seal in the system.
Enter McMaster-Carr. For significantly less money than fixing one bad o-ring, I have a pile of replacement sets for every seal in the system.