... Description pressure gauge: · Case sizes: 1.5", 2", 2.5", 3.5", 4", 4.5", 6", 8", and 10" · Case material ... : brass, stainless steel · Connection: 1/8", 1/4", 1/2", 3/8", NPT, BSP or BSPT M14X1.5 M10X1dependent on model ... , Bar , Mpa, kpa, Kg/cm2· Accuracy: ASME B40.1 Grade B(+3-2-3%) · Customers special requirement are aviailable for us