21938 - ESAB 2-Inch High Pressure Regulator Gauge 4000 PSI ABS Case

Restore Your Regulator's Performance

Is your regulator's cylinder gauge cracked, stuck, or difficult to read? The ESAB 21938 High-Pressure Gauge is the perfect replacement to get your equipment back in top shape. Designed to measure cylinder pressure from 0 to 4000 PSI, this gauge gives you the vital information you need to know exactly how much gas is left in your tank before you start a critical weld. Running out of shielding gas in the middle of a bead is every welder's nightmare—having a reliable, easy-to-read gauge is the best way to prevent it.

Built for the Shop Environment

Welding shops are tough places. Tools get dropped, equipment gets bumped, and dust is everywhere. That is why ESAB designed this gauge with a durable ABS plastic case. This material is shock-resistant and won't corrode like cheap metal cases, ensuring that your gauge stays intact even if your regulator takes a knock. The 2-inch diameter is the perfect size—large enough to read clearly from a distance but small enough not to add unnecessary bulk to your setup. The white face provides excellent contrast against the black needle and numbers, so you don't have to squint to check your levels.

Easy Installation and Compatibility

Swapping out a gauge is one of the easiest repairs you can do on a regulator. This unit features a standard bottom-mount connection that fits most common industrial regulators used for MIG, TIG, and Oxy-Fuel processes. Simply use a wrench to remove the old gauge (ensure the system is depressurized first!) and thread this new one in with a bit of Teflon tape or thread sealant approved for oxygen use. It is compatible with high-pressure gases like Oxygen, Argon, CO2, and Helium mixes, making it a versatile spare part to keep in your maintenance kit.

Why Choose ESAB?

When dealing with high-pressure gases, quality matters. ESAB is a world leader in welding and cutting equipment, and their accessories are built to the same high standards as their machines. Using genuine or high-quality replacement parts ensures that your gas flow remains accurate and your equipment remains safe to use. Don't risk leaks or inaccurate readings with unbranded generic gauges; trust the ESAB 21938 to provide the reliability and durability you need for professional results.