Camlock Type D Female x 1/2" Female KL04473
The days are gone of quick disconnects and their propensity to leak, break and cause havok! Long live CAMLOCKS, after switching over to these you'll never look back. Sturdy 304 Stainless Steel design, and a super seal that will seriously stop anything from leaking out the side and causing a sticky mess.
It will take a bit of skill to undo and do up one of these with one hand. But hey.. practice makes perfect doesn't it brewers!