SENCTRL 0-30 PSI Glycerin Liquid Filled Low Pressure Gauge, 2.5" Dial Size, 1/4 NPT, Stainless Steel Case, Lower Mount, for Water Oil Air Pressure Test

I bought this to replace a broken pressure gauge on my Hayward swimming pool filter. I installed it using a T-fitting on the pressure gauge port to connect both this gauge and an electronic ADC sensor. The readings from this gauge match the electronic sensor exactly, so I trust that it’s accurate. The gauge itself feels well-built and of high quality. It was easy to install and is very easy to read. Great value and performance—five stars from me.

Excellent, well made gauge.

Arrived quickly and well packaged. Gauge appears to be working and reading correctly.

Looks nice, I figured the stainless case would be better than a chromed steel case. Liquid filled is generally better than dry for reliability and longevity. But the bubble in the glycerin is rather large. So large that the upper part of the dial - in the 10-20 PSI range - isn't covered by the glycerin. I could live with that, the glycerin in the mechanism would still get me reliability. But once installed the inside of the glass (where there is the bubble and no glycerin) was covered with condensation, see photo. So it's not hard to read, see photo. And unfortunately this range (10-20 PSI) is the working range for a residential boiler. This is the second glycerin-filled gauge that has had the same problem. So I can't say if this one is unique or if all liquid-filled gauges have this issue. This range of gauge is typical for boiler systems, so one would expect that it would be OK with hot (but certainly not boiling) temperatures.

I usually have to replace my pool filter pressure gauge every year even when removed for the winter. Worked great last season so we will see how it is when I reinstall it this year.

I bought this gauge to replace the pressure gauge on my Hayward sand filter. This gauge is professional level! The quality, feel, and accuracy is far superior to the cheap factory gauges that need frequent replacement (and for just $3 more). We will see how long this lasts, but it looks nice and functions great for the price.

It's a metal gauge that's heavier and sturdier than those other gauges with the plastic dials. I like the glycerin fill which does indeed stabilize the needle as advertised. (Mine looked only partially filled as shipped, but pumping the black button on top pushed the glycerin to near the top of the glass.) The 0-30psi range is perfect for my residential pool. The instructions say it's best to choose a range such that the "normal" pressure is in the middle of the range. Before I understood that, I ordered a 0-60psi, but the vendor handled a return/replace for this more appropriate model seamlessly. Thank you!

Excellent product.

Excellent quality gauge. Extremely good quality 👌