Ok so I don't use these gauges in the traditional way... I use them as finials for Steampunk style curtain rods and they are the coolest thing since sliced bread. The liquid filled gauges just have such a cool look to them, and the fact that I could find rights and lefts so that the gauge would be oriented correctly on either side of the rod is a major plus!! I made some for my house first and then one of my customers saw my pictures and asked me to make a set of rods for every window in her house. Nice little bonus job. The only thing that I didn't see available was both rights and lefts with 1/4" npt thread, there were rights but no lefts I believe. They were both available with 1/8" threads so I used adapters on the rods, you can see it in the photo. Still looks great though, in my humble opinion. Thanks for a quality product that looks great on my "no pressure" (yes that was intentional) drapery rods!!