oil filled pressure gauge help absorb vibration and pressure spikesglycerine is ... SteelPressure rangevacuum, compound, 0 - 15psi - 10,000psiLiquid filled mediaglycerine oil or silicone oilPlace of OriginManshan City ,ChinaYear2012CertificationISOWarranty One ... DAYWarranty One Year Details show Liquid Filled Gauge:Back Connection :Oil Guage Bottom Connection :Oil gauge with U-Clamp : Application These ...