... oil filled pressure gauge 1.size:1.5", 2", 2.5", 3", 4", 5", 6" 2.case:SS304 3.internals: brass 4.liquid filled pressure oil filled pressure ... stainless 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 ...