Liquid Filled Pressure Gauge Gaseous and liquid, non-high viscous, non-crytallizing media, also applicable under aggressive Liquid Filled Pressure Gauge Instructions: Application Range: Gaseous and liquid, non-high viscous, non ... ", 3/8", BSP, BSPT, NPT or according to customers requirements Filled oil: Glycerine, Silicone Oil Scales: psi, bar, Mpa, Kpa, kg ...