Nukatap Liquid Ball Lock Spout (Intertap)
This is a handy Nukatap spout accessory that can be used for a large range of purposes, including attaching a counter pressure filler gun. This makes keg to keg transfers or cleaning out your beer lines easy. Simply un-screw the regular nozzle and screw on the Liquid Ball Lock Post. Also compatible with Intertap taps.