... a ball valve;3,with ball and captive (as beer non-return valve);4,single lipvale;5, thread ... co2 connection: 5/8" BSP male;6, thread beer connection: 5/8" BSP male;7, easy maintenance and ... durability;8,short handle, easy to used on the keg of smaller diameter;9, high quality ,made in ... us with any installation questions, our draft beer experts are waiting to help you ! beer dispenser S type