Looking for a quality liquid filled gauge

Reasons to Choose a Liquid-Filled Industrial Pressure Gauge - WIKA blog Wika makes what I have experienced in harsh industrial settings to be the best gauges out there. The liquid filled ones have serious advantages over dry gauges. The liquid also lubricates mechanical movement. I don't run my little 273 with no oil. You can buy the 0 to 15 liquid filled 1/8 NPT fuel Holley gauge for about 60 bucks from Summit.