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HOSRH-2403 - 50ft Grade R Oxy-Acetylene Twin Hose, 3/8 Inch Diameter

Packaging: 1 per each
$247.24/ea $176.60/1 per each only $176.60/eaSave 29%

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SKU: HOSRH-2403 Categories: ,

OVERVIEW

Heavy-Duty Grade R Oxy-Acetylene Hose

The HOSRH-2403 Twin Hose Grade R 50Ft 3/8 is a premium solution for professional welders and fabricators requiring high-volume gas delivery for oxy-acetylene operations. Unlike standard 1/4-inch hoses, this heavy-duty hose features a larger 3/8-inch inner diameter. This increased size is critical when operating large heating tips (rosebuds) or heavy-duty cutting torches that demand significant gas flow to maintain a stable flame and prevent starvation. Without adequate flow, large tips can overheat or backfire; this hose ensures your equipment performs at its peak potential.

Constructed from durable rubber, this Grade R hose is specifically engineered for use with Acetylene gas only. It features the industry-standard color coding system—Green for Oxygen and Red for Fuel (Acetylene)—to ensure safe setup and operation. The hose comes fully assembled with standard "B" size brass fittings (9/16"-18 threads), making it ready to connect immediately to most industrial regulators and torch handles. The 50-foot length offers excellent versatility, allowing operators to move freely around large workpieces or structural assemblies without constantly relocating gas cylinders.

While Grade R hose is an economical and effective choice for acetylene, it is important to note that it is not compatible with alternate fuels like Propane, Natural Gas, or MAPP gas, which require Grade T hose. For dedicated acetylene setups, however, the HOSRH-2403 offers the perfect balance of durability, flexibility, and flow capacity. Its robust outer cover resists abrasion, sparks, and oil found in typical shop environments, ensuring a long service life under rigorous use.

Key Benefits

  • High Flow Capacity: 3/8" I.D. supports heavy heating and cutting applications.
  • Extended Reach: 50-foot length reduces the need to move heavy cylinders.
  • Safety First: Clearly color-coded and fitted with standard connections to prevent cross-connection.
Additional Information
Packaging Description:1 per each
Item:Twin Hose (twin-hose), Twin Hose
Used for:Acetylene Only, Acetylene Only (acetylene-only)
Length :50ft (50ft), 50ft
Diameter (in):3/8" (3-8), 3/8"
Grade:R
Material:Rubber
Color:Green/Red
----- new values below ----
Grade:R
Fittings:B-Size (9/16"-18)
Material:Rubber
Color:Green/Red
Diameter (in):3/8" (3-8)
Length:50ft (50ft)
Item:Twin Hose (twin-hose)
Used for:Acetylene Only (acetylene-only)

INCLUDED

  • 1 x 50 ft Grade R Twin Welding Hose (3/8" I.D.)

APPLICATIONS

  • Heavy-duty oxy-acetylene cutting
  • Structural steel heating and bending
  • Scrap yard demolition
  • Industrial fabrication
  • Shipyard repair

FAQ

Grade R hose is designed specifically for Acetylene gas only. Grade T hose features a neoprene liner that makes it compatible with all fuel gases, including Propane, Natural Gas, MAPP, and Acetylene. Using Propane in a Grade R hose will cause the rubber to rot and leak.

A 3/8 inch hose has a larger internal diameter, allowing for significantly higher gas flow. This is necessary when using large heating tips (rosebuds) or heavy-duty cutting torches that consume more gas than a 1/4 inch hose can supply without starving the flame.

This hose comes with standard B-size fittings (9/16"-18 threads). The oxygen fitting has right-hand threads, and the acetylene fitting has left-hand threads (identified by a notch on the nut).

No. This is a Grade R hose. Propane and other oil-based fuel gases will degrade the rubber liner of Grade R hoses, leading to potential leaks and safety hazards. You need Grade T hose for Propane.

While the hose can technically hold the pressure, it is not recommended. Inert gases usually use different fittings (5/8"-18) and single lines. This is a twin hose designed specifically for oxy-fuel processes.

Standard welding hose is typically rated for a maximum working pressure of 200 PSI, which is well above the standard operating pressures for oxy-acetylene welding and cutting.

No, this product is the hose assembly only. Flashback arrestors are sold separately and are highly recommended to be installed at the torch or regulator end for safety.

The hose is color-coded: Green is for Oxygen, and Red is for the Fuel gas (Acetylene).