Chrome-plated brass with 5/16" barb for connecting 5/16" or 1/4" ID beverage tubing to a beer shank or sankey coupler. This is a better size for systems where the liquid lines are fairly long and an increased flow is desried to off-set the length of the tubing.
Requires a Hex Nut or Wing Nut for connection to a beer shank, as well as a neoprene washer. It can also be attached to a commercial sankey coupler.