... users a number of advantages in certain measurement applications. Application: Liquid-filled pressure gauges provide users a number of advantages in ... S 316lower +/-2.5%1/4"NPT DialConnectionPointerBourdon TubeMovement dualbrassaluminiumbrassbrass * Liquid to glycerine or silicon oil * case size 2", 3.5 ... 1/4", 3/8" & 1/2" are available, too. Liquid Filled Pressure Gauge LM - Lower Mount, General Type