An MFL Check Valve to prevent backflow, with 1/4″ FFL outlet x 1/4″ MFL Inlet.

Use this check valve on ball lock gas connectors with MFL thread. Its internal mechanism prevents accidental back-flow of beer into the gas line on your kegging set up.

• Stainless steel 304
• Made for gas connectors with 1/4″ MFL threads
• Prevents liquid from entering your gas lines
• Permanent markings show flow direction