I haven’t seen this before, couldn’t identify it. Any help would be appreciated. Also depending on what it is, is the open end of the short pipe a concern?
I’m guessing a pressure gauge or regulator was previously installed where short galvanized pipe is. Not much help…but a start.
Mueller makes regulators but was that active /gas or water ?
My guess would be a vaccum break.
It’s an active water line, the main valve is to the right of this thing in the first photo.
I thought it was a urinal for men that could aim streight.
Well maybe I will have better luck with the next one.
And water supply is from bottom of this thing?