... case, steel gold plated case,brass polished case, all this can take with front flange, backflange and U-clamp.BEZEL MATERIAL:Steel black ... case, steel gold plated case,brass polished case, all this can take with front flange, backflange and U-clamp.BEZEL MATERIAL:Steel black ... .5%,1% accuracy, recalibrators,restrictors, special connections and more. Snap In General Pressure Gauges 5J2