U Clamp Pressure Gauge 4J2 1)Dial: 1.5", 2", 2. ... 4" 1/2" 3)CE Certificate U Clamp Pressure Gauge are high quality dry gauges design to provide reliableservice ... ringTUBE&SOCKET: steel with nickel plated, phosphor bronze ,SS and so on.MOVEMENT:Brass, stainless steelCONNECTION:1/8", ... ringTUBE&SOCKET: steel with nickel plated, phosphor bronze ,SS and so on.MOVEMENT:Brass, stainless steelCONNECTION:1/8", ...