A keg connector (gas) with integrated check valve. You can now have a check valve integrated into your ball lock disconnect. These high quality plastic disconnects are a great way to protect your regulator by preventing liquid from going up your gas line. These clear/grey disconnects are very common in the industry but now have the added feature of having a check valve integrated into the fitting. The internal parts are made from stainless steel and the body is clear so you can see whats inside. With the MFL thread you can attach: - Barb fitting (barbed swivel nut) - 8mm push in fitting - Mini Regulator