This patented stainless steel Ball Lock Adapter turns our Nukatap forward seal faucets and Intertap faucets into a ball lock outlet. With this, you can flush your beer lines, attach a counter pressure filler, or fill a keg. US Patents US6457614, US6626420, and US7077299
This worked great for me to transfer beer inside of a kegerator to a counter-pressure bottle filler. I No longer need to change disconnects on the keg when I bottle.