Handy part to make it easy to connect and disconnect your beer and gas lines to your keg coupler or tap shanks.

This handy fitting goes onto keg couplers and tap shanks and will allow you to change between commercial and home brew kegs without changing fittings or cutting beer lines. Connects to a standard commercial keg coupler with your existing hex nut.
To switch between kegs, simply unscrew the 1/4-inch MFL connector from the quick disconnect and screw the tail piece and your existing hex nut into place with your standard keg coupler. Great for home brewers that also enjoy commercial keg beer.

To fit onto this mfl thread you can use these swivel nut and barbtails or alternatively use the Duotight FFL fittings.