oil filled pressure gauge 1.size:1.5", 2", 2. ... .case:SS304 3.internals: brass 4.liquid filled pressure oil filled pressure gauge1.size:1.5", 2", 2.5", 3 ... steel10.dial and pointer: aluminum11.window: glass, polycarbonate12.pressure range: vacuum, 4psi-15000psi13.accuracy: 1%-1.6% ... Our company was established in 2003 to manufacture pressure gauges, thermometers, timer and plumbing accessories. With ...