Glycerine Filled Pressure GaugesNorthern Hydraulics stocks a full line of glycerine filled pressure gauges, from vacuum to 10,000 PSI. Stem mounting and center-of-the-back panel clamp mount options are available. 2-1/2" diameter display face is standard stock size. Glycerine filled gagues manufactured by Dynamic Fluid Components are an accurate measure for your pressure gauge needs. Gauges are built with a stainless steel case, a bronze bourdon tube and connection, and they also have a polycarbonate lens. Gauges have a built in snubber and are designed with readings for both the PSI and BAR scales.