faucets

Purchased mine at Lowes, same as a house faucet. I got one that the neck swivels side to side, kind of convenient with a smaller sink.
Blessings Keith

Just measure the distance between the holes any big box home supply carry them.

^^^ These. Normally there's nothing special about an RV faucet. I've changed a few myself over the years.

Insead of replacing the nuts in the faucet hold downs with just plane hex nuts, use stainless steel wing nuts with washers. much easier replace, and removal if necessary no special tool will be needed.

I found suitable replacements everywhere when I replaced one of mine.
Now I wound up buying at an RV dealer because of two things
They had the type I wanted (not a typical bathroom faucet but a "Bar" type with a high "neck" that had the room to clear my water jug in case I wished to fill it on the attached filter.. I now do the jug differently so ...) and
2: Beleive it or not.. CHEAPER

For the kitchen I went to eitehr Lowe's or home Depot

But both are standard faucets any hardware, pluming. RV dealer or big box home improvement store.

One word of caution. For the bathroom you are likely going to have standared 1/2 inch IPT threaded connectiors.

For the kitchen they may be standard...or not.. I had to make a few connector changes. Not a problem.