Meter connection? It specifies flow direction.
Check valve, I would guess.
That was my first guess, but there are two caps that serve some purpose.
I don’t know. It could be a double, but they are usually copies of one another. Most check valves I’ve seen were mounted with the caps facing up. I was going to comment about it possibly being upside down but based on the orientation of the print that is obviously not the case.
Did you by chance get a close-up where the text in the triangle is legible? The “Type 135” didn’t provide much clue.
I believe Chuck is correct a “Double Check”.
No, this is the only photo from an old inspection.
I’d say that’s it, thanks Bob!
Does not appear it would matter if they face up or down.