HVAC/R


Marsh Bellofram HVAC/R gauges are ruggedly designed to meet the everyday requirements of the heating, plumbing and refrigeration maintenance industries, as well as building inspection and construction, to help ensure systems are operating according to code. The gauges are offered in a variety of unique styles and types to meet the specific needs of each type of testing environment, with steel casing and copper alloy components and clear, easy-to-read dual pressure and temperature dial readout units.


Gas Test Gauge

Gas Test Gauge

Use to pressure test all new gas installations for leaks and passing inspection codes. After installing Gas Test Gauge, the system is pressurized with air. Any leakage will be indicated by a pressure drop on the gauge. Typical applications include […]

Servicemans Test Gauge

Servicemans Test Gauge

The Servicemans Test Gauge from Marsh Instruments is a Deluxe Serviceman Test Gauge, designed to assure the modern serviceman the best possible gauge for testing refrigeration equipment. Corresponding, easy-to-read temperature scales are printed in red on the inner arcs of […]

Manifold Gauge

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 […]

Refrigeration Ammonia Gauge

Refrigeration Ammonia Gauge

The Refrigeration Ammonia Gauge from Marsh Instruments includes a restrictor that protects the gauge against sudden shock or pulsating pressure. The inner dial arc shows pressure, outer arc shows the corresponding temperature scale. The Marsh Instruments Refrigeration Ammonia Gauge is […]

Refrigeration Gauge

Refrigeration Gauge

The Refrigeration Gauge from Marsh Instruments is sturdily constructed and tested to give long, continuous, accurate service. In addition to the standard pressure or compound scale, dials also show the corresponding temperature scales for R-12, R-22, and R-502, in the […]

Contractors Gauge

Contractors Gauge

Marsh Instruments Contractors Gauge is an HVAC Service Gauge, newly redesigned gauge with a long-life movement to meet the needs of contractors in air conditioning, heating, plumbing and refrigeration. This rugged and reliable gauge is economically priced and offers many […]

Heating System Gauge

Heating System Gauge

The Heating System Gauge from Marsh Instruments are available in 3-1⁄2″ and 4-1⁄2″ dial sizes in the most popular ranges. An adjustable red altitude pointer is standard on feet-of-water gauges. This feature allows the user to indicate the head of […]