The Chase Bays Fuel Regulator Gauge was designed to simply give an accurate fuel pressure reading in a compact and aesthetically pleasing package. The gauge is stainless steel 1.5" / 38mm diameter with a chrome face. It is liquid filled to eliminate common vibration damage. The stainless steel male threads on the back are 1/8 NPT and silver in color NOT brass.
Our standard fuel pressure gauges are black on black, we had an error where we made them in chrome so that's the only reason they're cheaper!