Manifold Gauge

The Manifold Gauge from Marsh Instruments.  These gauges are designed for the pressure measurement of refrigeration systems. All dials are furnished with corresponding temperature scales for the various refrigerants. Dials feature R-12, R-22, and R-502. Standard connections are 1⁄8 NPT lower mount with your choice of red or blue case.

Marsh Manifold Gauges are used in refrigeration applications for testing, servicing, and recharging AC and R Systems.



  • Recalibrator and Restrictor Standard
  • Color Coded Cases, “Reds” & “Blues”
  • Overpressure Protection to 350 psi