Glycerin Filled Vacuum Pressure Gauge, 2-1/2" Clear dial,1/4" NPT Bottom Connection, Stainless Steel Case, Brass Movement, Dual Scales -30HG/30PSI

Nice quality gauge with an easy to read dial and hefty weight. Nice that they included the 1/8NPT adapter.

Bought this to replace broken gaige on my nitrogen regulator (HVACR). Worked like a charm. So much nicer than stock gauge. However I should have paid attention to size closer. Its held up well...through workers knocking my tank over...:/

I used this gauge to help solve some suction-side pool plumbing issues. The pump was not priming and I didn't know if there was a problem with the pump or the plumbing or both. With some PVC and a couple of other pieces I made a fitting which connected to my inlet plumbing at the pump. This worked perfectly and after some debugging I realized it was the pump (a seal had worn) and not the plumbing. Something easy to miss with this gauge that probably led to a number of people having issues (and giving poor reviews); a vacuum gauge measures the difference in air pressure between what's in your pipe and the atmosphere, therefore you typically need a small weep hole somewhere on the gauge to let the outside air pressure in. This gauge has a rubber stopper top with a pointy nub and some small print on a label saying to cut the nub before using - this lets the atmospheric pressure in. If you do not do this it will not work correctly! This product does not come with instructions so if you miss that little label and direction on the gauge you're going to have problems. Overall I'm very pleased with the quality and performance of this gauge.

I have a couple of smaller gauges that fail...This gauge is much easier to read and so far have not failed (due to the liquid filling)...seems to be much better than the ones I have.

Sturdy, the gauge is accurate. Used it to construct an inflation system which inflates two tires at a time. Have used in the field numerous times.

Price ok quality good

Great product. Highly recomended A++++++

Update: Because my gauge leaked, Uharbour refunded my money (several months after my original purchase date). I'm surprised and delighted by this. This is a good company! ----------------------------------------------- Leaks glycerin. Since ordering this gauge, I've used it to measure vacuum-draw about four or five times. After those initial vacuum cycles, it sat unused (with the rubber fill-plug oriented upwards) for about three months. Now that I need the gauge again, it is making a mess in my workspace. I never let the gauge rest in a strange orientation, because I was concerned about glycerin possibly leaking from the rubber fill-plug, but the leak appears to be dripping from the face, not from the fill-plug (see uploaded picture, notice the drop of glycerin at the base of the face).