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Derbyshire, Mack and Morgan, Inc.


Marsh Products


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  • Dial Sizes: 2.5", 3.5", 4.5"
  • Four Case Styles
  • Accuracy: ASME B40.1 - 2-1-2%

Marsh Instruments Low Pressure Diaphragm Gauges are universally known for their dependable performance and accuracy. Incorporating a unique design feature, the diaphragm element allows accurate low pressure readings in a variety of applications. Featuring a bronze diaphragm element, the gauge is capable of ASME/ANSI Grade A-1% accuracy for ranges above 30 inches of water. Ranges are available in vacuum and pressure in inches of water, ounces per square inch and millimeters of mercury.


1999 Derbyshire, Mack and Morgan, Inc.