A 1/4" Flare to 1/4" Barb (Threaded to Barb) Swivel Nut is used to connect hose to a 1/4" threaded MFL Cornelius Keg Connector.
It can be used for both gas and liquid. You should also purchase a stainless Oetiker Clamp or Worm Clamp to secure the connected lines.
