... ", 4", 5", 6" 2.case:SS304 3.internals: brass 4.liquid filled pressure oil filled pressure gauge1.size:1.5", 2", 2.5", 3", 4 ... 2.case:SS304 3.internals: brass, phosphor bronze, stainless steel4.liquid filled pressure5.connection size:1/8", 1/4", 3/8", 1 ... %-1.6% Our company was established in 2003 to manufacture pressure gauges, thermometers, timer and plumbing accessories. With experience, we have ...