Gas and oil caps. O-ring size?

[irhunter]

I am going to buy some o-rings for both the old Husky caps (e.g., from a Husky 55) and the Stihl flippy caps (e.g. from a 441).

I am thinking the Husky oil cap takes a -212. The Husky gas cap takes a -218. And, the Sthil is a -214.

Buna-N, 70 duro.

Is that what you guys are using?

Roy