... Gauge 4Z2are high quality dry gauges design to provide reliableservice on applications not corrosive to the typical applications include pumps, ... SOCKET: steel with nickel plated, phosphor bronze ,SS and so on.MOVEMENT:Brass, stainless steelCONNECTION:1/8", 1/4", 1/2", 3 ... SOCKET: steel with nickel plated, phosphor bronze ,SS and so on.MOVEMENT:Brass, stainless steelCONNECTION:1/8", 1/4", 1/2", 3 ...