"COUPLING HAS FEMALE THREADS ON ONE END, 3/8 INCH PLAIN BARB (UNTHREADED EXTERNAL) CONNECTION ON OTHER END; THREADS PROPRIETARY TO COKE PRODUCTS AND CONNECTORS; COLOR RED; USE WITH 7310-01-574-0412, A UNIVERSAL ADAPTER, TO EASILY SWITCH BETWEEN BEVERAGE PRODUCTS ATTACHED TO A BAG IN A BOX BEVERAGE MACHINE"