1/4" Flare nut with a 3/8" barb fitting
These will fit any of the 1/4'' flare soda keg disconnects as well as any of the commercial 1/4" flare fittings. Generally used on the gas side of a system.
Gas line is often 5/16'' and will fit this barb securely
Use a hose clamp when using this product
FYI- There is no reason to use a gasket or Teflon tape on a flare fitting. If your flare is leaking something is not working properly.