... size: 1/8" 1/4" 1/2" 3)CE Certificate U Clamp Pressure Gauge are high quality dry gauges design to provide ... case, all this can take with front flange, backflange and U-clamp.BEZEL MATERIAL:Steel black bezel, steel bezel, chrome plated bezel ... case, all this can take with front flange, backflange and U-clamp.BEZEL MATERIAL:Steel black bezel, steel bezel, chrome plated bezel ...