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770133 - Hobart Grade R Oxy-Acetylene Twin Hose - 1/4 Inch x 50 Feet

Packaging: 1 per ea
$224.43/ea $155.98/1 per ea only $155.98/eaSave 30%

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OVERVIEW

Extend Your Reach with Hobart's 50ft Oxy-Acetylene Hose

Get the freedom to weld and cut where the work is with the Hobart 770133 Twin Welding Hose. If you are tired of dragging your heavy tanks around the garage or struggling with a short, stiff hose that limits your movement, this 50-foot upgrade is exactly what you need. Designed by Hobart, a trusted name in welding, this hose is built to handle the heat and grit of real-world welding projects. It is a Grade R hose, meaning it is specifically formulated for Oxy-Acetylene welding and cutting. Note: If you are using Propane or other alternative fuels, you'll want to look for Grade T, but for the classic Acetylene burner, this Grade R hose is the perfect match.

The hose features a standard 1/4-inch diameter, which is plenty big enough to feed full-size cutting torches without starving the flame, yet flexible enough to coil up easily at the end of the day. The "B" size brass fittings are ready to screw right onto your regulator and torch handle—no adapters needed for most standard setups. The threads are clean, and the crimps are solid, giving you peace of mind that your gas connections are secure.

One of the biggest frustrations with cheap hoses is memory and kinking. This Hobart hose is designed to lay flat and resist kinks, so you don't have to stop mid-cut to untangle a knot in your line. The distinct Green and Red coloring makes it impossible to mix up your lines, keeping you safe. Whether you are restoring a classic car, fixing farm equipment, or doing general metal art, having 50 feet of high-quality hose changes the game. Stop moving the cart; start moving the torch.

Why Choose This Hose?

  • Plug & Play: Fits standard regulators and torches immediately.
  • Built Tough: Resists shop floor abrasion and wear.
  • Safety First: Clearly marked and color-coded for Acetylene use.
  • Maximum Mobility: 50 feet of freedom for your torch.
Additional Information
Brand:Hobart
Diameter:1/4"
Item:Twin Hose
Length:50 ft
Used For:Acetylene
Grade:R
Fittings:B-Size (9/16" - 18)
Material:Rubber
Color:Green (Oxygen), Red (Acetylene)
Connection Type:Threaded
Packaging Description:1 per ea

INCLUDED

  • 1 x 50 ft. Grade R Twin Welding Hose (1/4 in. ID)
  • Pre-installed "B" Size Brass Fittings (Oxygen & Acetylene)

APPLICATIONS

  • Oxy-Acetylene Welding
  • Oxy-Acetylene Cutting
  • Brazing and Heating
  • Automotive Repair Shops
  • Farm and Agricultural Maintenance
  • General Metal Fabrication
  • Structural Steel Work

FAQ

Grade R hose is designed specifically for use with Acetylene gas only. Grade T hose is designed for use with all fuel gases, including Propane, Natural Gas, and Acetylene. You should not use Propane with this Grade R hose as it can deteriorate the rubber lining.

This hose comes with standard "B" size fittings, which have 9/16"-18 threads. This is the most common fitting size for welding regulators and torches.

No. This is a Grade R hose intended for Acetylene. For Propane service, you must use a Grade T hose to prevent the fuel gas from degrading the hose material.

This specific product (Hobart 770133) has a 1/4-inch inner diameter (ID), which allows for higher gas flow compared to 3/16-inch hoses.

Yes, the hose comes pre-assembled with brass fittings on both ends for immediate connection to your regulators and torch.

The hose is color-coded for safety. The Green line is for Oxygen, and the Red line is for the fuel gas (Acetylene). The fittings are also threaded differently (Oxygen is right-hand, Acetylene is left-hand) to prevent cross-connection.

While specific burst pressure can vary, standard welding hoses are typically rated for a working pressure of 200 PSI, which is well above standard oxy-acetylene operating pressures.