I used the 4-way connectors in the past, the ones that are threaded. Probably Winter but not sure. Convenient but leaks can occur. When reconnecting, push the two halves together, then tighten the threaded knob. Then push the halves together again and retighten. Repeat. If you don't do this a few times to compress the little sealing rings, you can get a leak. Worst is a cross leak that feeds pitot or TE into another line.

Best is to run a leak check after you reconnect. But that defeats the whole point of the convenience. So I haven't used them in a long time, since we had a Libelle where you had to remove the panel to work on it.

Chip Bearden