Description The Valley Industries Universal 100 PSI 2 Inch Dry Back Mount Gauge was designed to be used for applications such as chemicals, fuels, oil and water or any medium not corrosive to brass or bronze. Featuring a brass movement with phosphor bronze bourdon tube. Built with an Acrylic window and ABS standard Steel for increased durability. ¼ Inch MNPT 316 brass male connection. Grade B accuracy. Black enameled aluminum pointer and white background. Fill made of dry material only. Perfect for Master Manufacturing and other branded sprayers.