Is 304 stainless steel good enough to leave outside?

Yes. 304 is the common outdoor grade and resists rust far better than 201 or galvanized steel. Rinse off fertilizer, salt and pool chemicals, and dry the basin to keep the finish clean.

Does it come with a faucet and drain?

Most freestanding utility sinks like this ship as the basin and stand only. Check the box contents before buying; you will likely need a faucet, supply hose and drain fitting.

Can it be connected to a garden hose?

Usually yes, with a hose adapter or a utility faucet that threads onto a standard hose. There is no built-in water supply, so plan the hose route and drainage before you place it.

How does it compare with a built-in outdoor sink?

A built-in sink gives you counter space and storage as part of an outdoor kitchen. This freestanding unit is easier to install and move, but it stands alone and holds less around the basin.

Will the legs stay stable on a patio?

On flat concrete or pavers they are fine. On gravel, grass or sloped ground, anchor the legs or set them on a level base to stop wobble.

What can I use it for besides dishes?

It suits grill prep, fish cleaning, potting plants, washing tools and rinsing gear. Keep food contact surfaces scrubbed, since it is an outdoor utility basin.