... polished case, all this can take with front flange, backflange and U-clamp.BEZEL MATERIAL:Steel black bezel, steel bezel, chrome plated ... polished case, all this can take with front flange, backflange and U-clamp.BEZEL MATERIAL:Steel black bezel, steel bezel, chrome plated ... scale, DIN 2.5%,1% accuracy, recalibrators,restrictors, special connections and more. Back Connection U Clamp Pressure Gauge 4Z2U