The Ball Lock Gas Line Assembly includes a ball lock gas "in" quick disconnect, 3 feet of 1/4" ID beverage tubing, two hose clamps and barbed swivel nuts on either end of the tubing.
Simply thread the open end to the gas "out" of your regulator or CO2 manifold, hook up the ball lock quick disconnect fitting to your Cornelius keg, and you're ready to impart intense carbonation on any ball lock keg.
I bought two both work fine.
Ball Lock Gas Line Assembly
Does as advertised. Good value.
Great set up with all of the fittings that you need to take the guesswork out. Only thing that would have made it better would be if the gas ball lock fitting would have been a sealed to the nut instead of just loosely attached.
Used this to connect cannonball keg to 5lb co2 regulator. Works great.