Leak under sink, please help
I have this leak under the sink. I tried to tighten the nut, but no go as it’s still leaking.
With Home Depot being closed, I can’t ask anyone what I need to chnahe so I’m asking for help here
I’m assuming the fitting needs changing? I’m not sure what kind of fitting to get.
Also looks like it’s copper on one side Snd plastic on the other?