This is a set of new posts (plugs) that will fit Cornelius kegs.
These are made for Cornelius and they include new poppet valves and new o-rings for the posts (2 Orings total).
They will not fit Firestone kegs, but we have used sets for Firestone.
These posts are extremely high quality.
Call us at 325-356-5204 if you have questions about these.