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21867 - ESAB 2-Inch Replacement Regulator Gauge 0-400 PSI

Packaging: pack of 1
$35.38/EA $21.20/pack of 1 only $21.20/EASave 40%

Usually ships within 3-5 business days

OVERVIEW

Clear Readings, Better Welds

There is nothing more frustrating than trying to guess your gas settings because of a cracked, stuck, or unreadable gauge. The ESAB 21867 Replacement Gauge is your quick fix to get your regulator back in top shape. Designed for the daily grind of the welding shop, this gauge gives you a clear, accurate view of your delivery pressure so you can focus on laying beads, not squinting at your equipment.

This specific unit covers a 0 to 400 PSI range. That makes it the perfect replacement for the "low side" or delivery gauge on many oxygen, argon, and CO2 regulators. If your old gauge took a hit from a tank tip-over or just stopped reading zero, swapping it out is a five-minute job that restores your ability to control your process. The 2-inch dial is the standard size for most regulators, meaning it won't look out of place or interfere with the regulator body or handle.

Visibility is key when you have your hood up and are making adjustments. That’s why this gauge features a crisp white face with bold black numbers. You can check your pressure from a distance without needing a flashlight. The connection is a standard 1/8" NPT stem, which is the industry standard for almost all regulator gauge ports. Just apply a little Teflon tape or thread sealant, screw it in snug, and you are leak-free and ready to go.

Don't let a $20 part compromise the quality of your work or the safety of your shop. A working gauge is essential for knowing you aren't running out of gas mid-weld or over-pressurizing your lines. Keep a spare ESAB 21867 in your toolbox for those unexpected equipment failures, and ensure your regulator is always telling you the truth about your gas flow.

Additional Information
Brand:ESAB
Pressure Range:0-400 PSI
Dial Size:2 Inch
Connection Size:1/8" NPT
Face Color:White
Application:Regulator Delivery Pressure
Mount Type:1/8 AB
Packaging Description:pack of 1

INCLUDED

  • 1 x 2.00" 400 PSI Pressure Gauge

APPLICATIONS

  • Replacement of damaged delivery pressure gauges on welding regulators
  • Monitoring output pressure for MIG and TIG shielding gases
  • Oxygen regulator low-pressure side monitoring
  • General purpose pneumatic pressure monitoring up to 400 PSI
  • Industrial gas manifold systems

FAQ

This gauge features a standard 1/8" NPT (National Pipe Thread) connection, which is the most common size for regulator gauges.

With a range of 0-400 PSI, this is typically a delivery (low pressure) gauge used to measure the pressure going to the hose/torch, not the full tank pressure.

Yes, provided the gauge is kept free of oil and grease. 400 PSI is a common range for oxygen delivery pressure, but always ensure clean installation practices for oxygen safety.

Unscrew the old gauge using a wrench on the brass stem (never twist the case). Apply Teflon tape or paste to the new gauge threads (avoiding the first thread), and tighten it into the port until snug and oriented correctly.

Most likely, yes. The 1/8" NPT thread and 2" dial size are industry standards used by Victor, Miller, Harris, and ESAB for many of their regulators.

In this context, it likely refers to the specific mounting configuration or series code, but the critical spec for fitment is the 1/8" NPT connection.

These gauges typically feature a painted steel or brass case for durability in industrial environments.

If a new gauge does not read zero, it may have been damaged in shipping. However, ensure there is absolutely no pressure in the line before checking. If it is off-zero at atmospheric pressure, it should be returned.