Skip to Main Content
Canadian
Canadian owned and operated

770130 - Hobart 3/16" x 25' Grade R Oxy-Acetylene Twin Welding Hose

Packaging: 1 per ea
$113.19/ea $78.67/1 per ea only $78.67/eaSave 30%

Usually ships within 3-5 business days

OVERVIEW

Get Back to Burning with the Hobart 770130 Hose

Is your current welding hose looking a little worse for wear? If you're seeing cracks in the rubber, hearing hisses near the fittings, or wrestling with a line that's stiff as a board, it's time for an upgrade. The Hobart 770130 Oxy/Acetylene Twin Hose is the reliable workhorse you need to keep your flame steady and your shop safe. At 25 feet long, it gives you plenty of room to move around your project or vehicle without getting tangled up, but it's not so long that you're tripping over coils of excess rubber.

One of the best things about this hose is its size. It's a 3/16-inch diameter line, which is slightly slimmer than the bulky 1/4-inch hoses found on heavy construction sites. Why does that matter? Flexibility. When you're trying to do a precise weld or a clean cut, the last thing you want is a heavy hose fighting your hand movements. This lighter hose drapes easily and follows your lead, reducing fatigue in your wrist and arm during those long sessions under the hood. It connects effortlessly to your gear using standard "B" fittings—that's the most common size for almost all regulators and torches found in garages and fab shops. No crimping tools or hose clamps required; just wrench it on tight, and you're sealed.

Know Your Gas: This is a Grade R hose, which means it is built strictly for Acetylene. It loves Acetylene. It hates Propane. If you run a propane cutting rig, you need a different hose (Grade T). But for the classic oxy-acetylene setup that most of us learned on, this Grade R hose is the perfect, cost-effective choice. The lines are color-coded green and red, so you always know which is which, and the fittings are threaded differently to prevent accidental mix-ups. Don't risk a leak with old, dry-rotted gear—swap in this fresh Hobart hose and get back to making sparks fly with confidence.

Additional Information
Brand:Hobart
Diameter:3/16"
Item:Twin Hose
Length:25 ft
Used For:Acetylene
Packaging Description:1 per each (1-per-each)
Grade:R
Gas Service:Oxygen, Acetylene
Connection Type:B-Size (9/16" - 18)
Hose Type:Twin Siamese
Material:Rubber

INCLUDED

  • 1 x 25 ft. Grade R Twin Welding Hose (3/16" ID)
  • Pre-installed "B" Size Brass Fittings (Oxygen & Fuel)

APPLICATIONS

  • Oxy-Acetylene Welding
  • Oxy-Acetylene Cutting
  • Brazing and Heating
  • General Metal Fabrication
  • Automotive Repair
  • Farm and Ranch Maintenance

FAQ

No. This is a Grade R hose designed specifically for Acetylene. Propane and other oil-based fuel gases will deteriorate the rubber lining, causing leaks. You need a Grade T hose for Propane.

The hose comes with standard "B" size fittings, which have 9/16"-18 threads. This is the industry standard for most medium to heavy-duty regulators and torches.

Yes, 3/16" ID hose flows sufficient gas for most standard hand cutting torches and welding tips. It is preferred by many for its flexibility compared to 1/4" hose.

The green line is for Oxygen and has right-hand thread fittings. The red line is for Acetylene (fuel) and has left-hand thread fittings (usually marked with a notch on the nut).

Yes, the hose comes fully assembled with crimped brass ferrules and fittings on both ends, ready to connect immediately.

While specific burst pressures vary by batch, Grade R welding hose is typically rated for a maximum working pressure of 200 PSI, which is well above standard oxy-acetylene operating pressures.

Most likely, yes. If your torch and regulators use standard "B" fittings (which the vast majority of Victor, Harris, Miller, and Hobart equipment do), this hose will fit perfectly.

Yes, hose repair kits with 3/16" barb splicers and crimps are available, but for safety, it is often recommended to replace the entire hose if it is damaged or showing signs of dry rot.