
Marsh Instruments has been a trusted name in high-quality industrial instrumentation for over 150 years, manufacturing precision pressure and temperature measurement solutions engineered for accuracy, durability, and dependable performance. Built to meet the demands of rigorous industrial environments, Marsh products serve countless industries including manufacturing, oil and gas, power generation, water and wastewater treatment, HVAC, chemical processing, food and beverage production, hydraulics, and many others.
Marsh’s extensive product portfolio includes Pressure Gauges, Thermometers, Thermowells, Diaphragm Seals, and a variety of instrumentation accessories. From general, severe, quality, or precision services to heavy duty, low pressure, process, or special applications, these instrumentation solutions keep nearly any operation running smoothly and consistently.
Cooney Brothers is proud to provide our customers with a wide range of Marsh Pressure Gauges that deliver rugged reliability and precisely accurate measurements in countless applications. Our inventory is made with Stainless Steel or Steel cases and Brass internals, in a dry or liquid-filled design. They also come with a ¼” or 1/8” NPT lower mount (bottom) or center back mount connection types as well as a variety of dial diameters , accuracies, and vacuum and pressure ranges from 0 to 2,000 PSI.
The Marsh Mechanical Pressure Gauges product lines we offer include:
- J Series General Service Gauges — Available in Lower Mount (LM) and Center Back Mount (CB) configurations
- G Series Low Pressure Gauges
- J64 Series Severe Service Gauges
- J76 Series Severe Service Liquid Filled Gauges
- X Series Severe Service Liquid Filled Gauges
Explore Marsh products at Cooney Brothers and Contact Us for expert guidance on selecting the right pressure gauges for your specific application.
Marsh Instruments has been a trusted name in high-quality industrial instrumentation for over 150 years, manufacturing precision pressure and temperature measurement solutions engineered for accuracy, durability, and dependable performance. Built to meet the demands of rigorous industrial environments, Marsh products serve countless industries including manufacturing, oil and gas, power generation, water and wastewater treatment, HVAC, chemical processing, food and beverage production, hydraulics, and many others.
Marsh’s extensive product portfolio includes Pressure Gauges, Thermometers, Thermowells, Diaphragm Seals, and a variety of instrumentation accessories. From general, severe, quality, or precision services to heavy duty, low pressure, process, or special applications, these instrumentation solutions keep nearly any operation running smoothly and consistently.
Cooney Brothers is proud to provide our customers with a wide range of Marsh Pressure Gauges that deliver rugged reliability and precisely accurate measurements in countless applications. Our inventory is made with Stainless Steel or Steel cases and Brass internals, in a dry or liquid-filled design. They also come with a ¼” or 1/8” NPT lower mount (bottom) or center back mount connection types as well as a variety of dial diameters , accuracies, and vacuum and pressure ranges from 0 to 2,000 PSI.
The Marsh Mechanical Pressure Gauges product lines we offer include:
- J Series General Service Gauges — Available in Lower Mount (LM) and Center Back Mount (CB) configurations
- G Series Low Pressure Gauges
- J64 Series Severe Service Gauges
- J76 Series Severe Service Liquid Filled Gauges
- X Series Severe Service Liquid Filled Gauges
Explore Marsh products at Cooney Brothers and Contact Us for expert guidance on selecting the right pressure gauges for your specific application.

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