320 Galley faucet water line size?

[Scooter2368]

We are purchasing a Catalina 320 and the galley faucet has a leak where the line comes into the faucet. I didn't look long enough during the survey to assess it myself. Could be simply re-doing existing fitting. Surveyor was able to stop it with hand pressure so isn't significant. The boat is 4 hours away and we plan to pick it up this week.

Anybody know if that line (from factory) is 3/8 or 1/2? Want to take assorted parts along.

 

[Calif. Ted]

The PEX supply lines are connected to the threaded faucet inlet using an adapter, these PEX connectors come apart by pulling up on the "collet ring" to unlock, the tube can then be removed or inserted into the fitting. If the locking collet ring is not fully seated you get a leak, you may need to remove and reinsert the supply lines.
The pressure relief valve on the water heater is in the same area under the sink, these are almost notorious for early failure and leaking so check it carefully as well. Pretty sure faucet is standard 1/2 inch, relief valve also standard household plumbing part.