The OUT (Liquid)disconnect for a Cornelius or Firestone Pin 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 1/4″ Barb Swivel Nut (assuming you are using 3/16 or 1/4 I.D. beer hose). This will allow for quick disconnects.