The general dry pressure gauges are designed to measure pressure of gas, liquid which isn't corrosive to brass. 

  • Item name: general dry pressure gauge 
  • Dial: 1.5" 
  • Range: 0-30 psi
  • Connection: 1/8 NPT back mount 
  • Case: black painted steel
  • Window: glass
  • Item number: pack of 1
  • Accuracy: +/-3-2-3%
  • Made to ASME B40.100 standard