Like I said earlier, if I could purchase a USA made mechanical gauge that I trusted (like the Stewart Warner I purchased back in 1974 or so) I would have made a purchase weeks ago (or years ago!). Not only that, but I am in the middle of a 3000+ mile road trip, so give me a break!
OK, middle of a 3K trip, but all the postulating & scheming w/o checking is silly.................and find Grainger, McMaster-carr, plenty of U.S.ofA. gauges out there, Ashcroft
etc., some fittings and a length of line & You're ready.............................................
