What’s this called?

[clyne]

I need more of these but no idea what they are called and don’t want to buy (another) thing that isn’t quite right. I got some with some brew kit I bought and it looks fairly standard but just don’t know what to google

 

[samale]

https://www.brewbuilder.co.uk/quick-disconnects.html
Quick disconnects

 

[clyne]

Awesome! Thanks @samale