Intertap Push In Growler Filler Spout
Attach some tubing, and push it into the end of your Intertap faucet spout, and you can fill bottles or growlers much more easily.
The o-rings on the non-barbed end allow it to seal and stay in place, while it is still quite easy to remove with a good pull. The barb is 3/8".
This part is only compatible with Intertap faucets