The Liquid Filled Bourdon Tube Pressure Gauge P1550 Series is made of rugged steel and the internals are made of brass for corrosive and high vibration conditions. Because of this the product is very accurate and it has low expense. The dial sizes are 1½”, 2", 2½”, 4". The stem mounting is made of 300 series stainless steel, compact back case with stainless steel crimped ring.
It has Buna-N® multi-function plug that has built-in detachable nipple for venting, pressure relief and fluid fill access. It comes in 18 various types of vacuum, compound and gauge pressure ranges. Lastly, it has standard glycerin for fill fluid and it comes with a silicone or mineral oil that can be availed upon request.