all stainless steel pressure Production Description 1) Case with rolling2)Dial: 1.5"-6"3) Connection size: ... kpa,mpa,bar,kg/cm2),available NameValueBrandNaiTe/ OEMModel1.5" 2.0" 2.5" 4" 6"Windowglass, polycarbonateCase 304 Stainess Steel ... or 316 Stainess SteelPressure rangevacuum, compound, 0 - 15psi - 10,000psiLiquid filled mediaglycerine oil or silicone oilPlace ...