The In (gas) disconnect for a Cornelius or Firestone Ball Lock Keg. This connector has a 1/4″ MFL (threaded) connection. In order to connect to a hose you need a 1/4″ MFL to 5/16″ barb swivel nut (assuming you are using 5/16 red gas hose). This will allow for quick disconnects. The gas connector will also screw directly into a portable charger.