"Galvanized Steel was a selling point for hot-water heaters when my Dad and brothers used to be plumbling contractors. Do not know why, but I suspect it has something to do with longevity. When you "galvanize" yourself you toughen up. (No one uses that expression anymore). Not a hot-water tank obviously. Enjoy the cache, be mindful of traffic and take a deep breatrh to galvanize yourself for the caching days ahead. Congrats to frankllu. FTF.