GA142-03 - Smith Equipment 2" Replacement Regulator Gauge, 0-600 PSIG, 1/4" NPT

Precision Pressure Monitoring for Industrial Regulators

The Smith Equipment GA142-03 is a high-quality replacement gauge designed to restore the functionality and safety of your gas pressure regulators. Engineered for durability and accuracy, this 2-inch gauge is an essential component for welders and industrial professionals who rely on precise gas delivery. With a pressure range of 0-600 PSIG, it is ideally suited for monitoring delivery (working) pressure on heavy-duty regulators used with Oxygen, Inert Gases, and other compatible industrial gases.

Safety and longevity are at the forefront of this gauge's design. It features a robust steel case that protects the internal mechanisms from the rigors of daily shop use. The internal brass inlet nipple ensures a secure, leak-free connection, while the one-piece polycarbonate crystal is virtually shatterproof. This crystal also includes a protective lip, specifically designed to prevent damage to the gauge face from accidental impact, ensuring your readings remain clear and legible over time.

Compatibility is a key advantage of the GA142-03. It comes standard with a 1/4" Male NPT (MNPT) connection, making it a universal fit for all major brands of gas pressure regulators that utilize 1/4" Female NPT (FNPT) gauge inlet threads. Whether you are repairing a Smith Equipment regulator or a unit from another manufacturer, this gauge provides a reliable solution. The watch-type precision movement guarantees optimum accuracy, allowing operators to fine-tune gas flow with confidence. U.L. Listed and built to industry standards, this gauge is a dependable choice for maintaining the performance of your oxy-fuel and shielding gas equipment.

Key Applications

• Delivery Pressure Monitoring: Accurately measures output pressure from 0 to 600 PSIG.


• Regulator Repair: Direct replacement for broken or faded gauges on Smith and other major brand regulators.


• Industrial Gas Systems: Suitable for use with Oxygen and Inert gas manifolds and distribution systems requiring 1/4" NPT mounting.