Review on 🚺 Female Thread Handle in Durable Stainless Steel by Tay Fair

I ordered 2 valves for the RV low point drains so I just wanted them to open and close without leaking. They were relatively cheap so I wasn't expecting much. Not sure what they are made of, but one of the two received today has rust/corrosion (enlarge image). If I were to use it for drinking water I wouldn't use it, but the corrosion is on the outside of the drain valve in my application so I'll try. My expectations are not high. Update: The valves don't leak, they work great when drained at the bottom. I wouldn't use it for the power line due to corrosion.