Marsh Instrument 0-4000 PSI Pressure Gauge 2.25" Face 1/2" NPT 100 PSI Grad

Marsh Instrument 0-4000 PSI Pressure Gauge 2.25" Face 1/2" NPT 100 PSI Grad

This is an analog pressure gauge by Marsh Instrument Company, reading from 0 to 4000 PSI with a 2.25-inch dial face and a bottom-mount 1/2" NPT connection. The gauge features a cream/white dial with clear black markings graduated in 100 PSI increments, enclosed in a chrome-finish metal bezel. Marsh Instrument Company is a long-established U.S. manufacturer of industrial gauges known for straightforward, reliable mechanical pressure measurement.

Specifications & What's Included

• Brand: Marsh Instrument Company
• Pressure range: 0 – 4000 PSI
• Dial face diameter: 2.25 inches
• Graduation: 100 PSI per division
• Process connection: 1/2" NPT, bottom mount
• Unit of measure: PSI (pounds per square inch)
• Dial color: cream/white with black markings
• Bezel: chrome-finish metal
• Gauge only — no additional accessories included

Applications

Bourdon-tube analog pressure gauges like this Marsh 4000 PSI unit are standard instruments in industrial, hydraulic, pneumatic, and compressed-gas systems wherever a direct local pressure reading is needed. A 4000 PSI range makes this gauge suitable for high-pressure hydraulic circuits, pressure testing rigs, pump discharge monitoring, industrial air compressor systems, and gas cylinder regulators. The 1/2" NPT bottom connection is one of the most common pipe thread standards in North American industrial plumbing, making this gauge straightforward to install in a wide range of existing systems. Marsh gauges have been produced in the United States for over a century and are found across manufacturing plants, utilities, laboratories, and mechanical test stands. This particular face size (2.25") is a compact format commonly used in panel-mount or inline applications where space is limited.