Designed for maximum flow, the Taprite CH5100 S System European Keg Beer Coupler can be used for either single or series keg dispensing. Made for European S systems, this coupler is compatible with the large majority of import beer brands such as Heineken and Amstel Light. A high-capacity pressure relief valve has been incorporated as an integral part of the coupler body. This serves two purposes: first, when functioning with other relief devices in the system, it will prevent a keg from reaching pressures in excess of recommended working pressure. Secondly, it allows the user to relieve pressure when needing to prevent or correct dispensing problems.