spray hose

I currently have a leak coming from the connection on my hose assembly on my delta kitchen pulldown faucet. Ive been looking for replacement parts, however, the connection type on the replacement parts looks pretty different than what I have (Could be that this faucet is original when my house...

Hello, I'm looking to remove our kitchen house sprayer from it's feed, and place a brass flare cap over it. But what kind of connection is in this picture? It's hard to get to so I want to know just how to remove it once I'm ready. And does it look like I'd be able to place a cap on it? Thank you