304 stainless
Inland, covered, away from direct salt exposure
The industry default for good reason: strong, clean, repairable, and widely available in every appliance size you might want.
Within a mile of open salt water it pits and streaks, usually inside two seasons. Most rust complaints in this category are 304 that was sold where 316 belonged — which is why we only specify it where salt actually reaches the cabinetry.
