... case, it can take with front flange, back flange and U-clamp Bezel material: stainless steel bezel, stainless steel roll ring or ... , 10,000psi and so on Windows (Lens) material: PC is standard. Glass is available as an option Accuracy: ASME B40.1 ... and accessories: custom dial, metric scale, DIN 2.5% accuracy, U-Clamp, restrictors. back connection glycerin filled Pressure Gauge