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0781-2704 - Victor GRF400-320 CO2 Flowmeter Regulator with 10ft Hose

Packaging: pack of 1
$416.37/EA $281.85/pack of 1 only $281.85/EASave 32%

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OVERVIEW

Reliable CO2 Gas Control with Victor Quality

Upgrade your welding setup with the Victor GRF400-320 Flowmeter Regulator, a complete gas control solution designed for hobbyists, DIYers, and light-duty fabricators. If you are using Carbon Dioxide (CO2) for your MIG welding or other shielding gas needs, this regulator offers the perfect blend of precision and affordability. Unlike generic regulators that may fluctuate or fail prematurely, this unit is built by Victor, a world leader in gas equipment, ensuring you get consistent gas coverage for cleaner, stronger welds every time.

The GRF400-320 is specifically outfitted with a CGA 320 connection, making it directly compatible with standard CO2 tanks without the need for sketchy adapters. The vertical flow tube features an easy-to-read scale ranging from 2 to 40 SCFH. This visual indicator takes the guesswork out of setting your gas flow—simply adjust the knob until the ball hovers at your desired rate. Whether you are welding thin sheet metal in your garage or performing quick repairs on the farm, knowing exactly how much gas you are using helps you save money on refills and prevents porosity in your welds caused by lack of shielding.

Ready to Use Out of the Box
One of the biggest frustrations when buying new gear is realizing you are missing a part. The Victor 0781-2704 solves this by including a high-quality 10-foot gas hose. This generous length gives you the flexibility to position your welder away from the tank if needed, or simply replaces an old, cracked hose that might be leaking expensive gas. The compact design of the regulator itself means it won't protrude awkwardly from your cylinder, reducing the risk of accidental damage in a crowded workspace.

Designed for light-duty cycles, this regulator handles the unique characteristics of CO2 with ease. While CO2 can be tough on equipment due to its freezing nature, the GRF400 is engineered to handle a 20% duty cycle, which is more than sufficient for most non-industrial welding sessions. Invest in a tool that lasts and provides the accuracy you need to take your welding projects to the next level.

Additional Information
Brand:Victor
Cga Fitting:CGA 320
Item:Flowmeter
Used On Which Gas:CO2
Packaging Description:1-per-each
Gas Type:Carbon Dioxide (CO2)
Flow Range:2-40 SCFH
Connection Type (CGA):CGA 320
Applications:Light Duty, HVAC, Light Fabrication
Duty Cycle:20% (CO2)
Included Components:10 ft. Hose
Max Inlet:N\A
Max Outlet:38 SCFH
Used On Which Gas?:CO2

INCLUDED

  • Victor GRF400-320 Regulator/Flowmeter
  • 10 ft. Gas Hose (3/16" I.D.)
  • Instruction Manual

APPLICATIONS

  • Light-duty MIG Welding (GMAW) with CO2
  • HVAC purging and testing applications
  • Hobbyist and DIY metal fabrication
  • Maintenance and repair operations
  • Educational welding labs

FAQ

This regulator is equipped with a CGA 320 inlet connection, which is designed specifically for Carbon Dioxide (CO2) cylinders.

Yes, the Victor 0781-2704 package includes a 10-foot gas hose, allowing for immediate connection to your equipment.

The flowmeter is calibrated to measure gas flow from 2 to 40 SCFH (Standard Cubic Feet per Hour).

Not directly. The CGA 320 fitting is specific to pure CO2 cylinders. Argon and mixed gas cylinders typically use a CGA 580 connection. You would need a different regulator or an adapter (though a dedicated regulator is recommended).

It means the regulator is designed for intermittent use with CO2. Continuous high-flow use of CO2 can cause the regulator to freeze up due to the gas expanding; a 20% duty cycle prevents this issue in light-duty applications.

No, the GRF400 series is designed for light-duty applications. For heavy-duty or continuous industrial use, a high-capacity regulator with a heated option might be required for CO2.

The flowmeter has a vertical tube with a ball inside. As you open the valve, the ball rises. You read the flow rate (SCFH) at the center of the ball against the scale printed on the tube.

The outlet is typically a standard 5/8"-18 RH(F) connection, which fits standard inert gas hoses used in welding.

CATALOGUE & SPEC SHEETS

Spec Sheet
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