onlyfire 25FT Propane Torch Hose, 350 PSI — 5/16" ID Black with Brass Fittings

The onlyfire 25FT 350PSI High Pressure Propane Torch Hose is a 25-foot, 5/16" inner-diameter hose with durable brass fittings designed to extend low-pressure propane torches and portable appliances safely.

This heavy-duty extension hose provides a longer reach for propane torches, grills, fryers, and other portable propane appliances. Built with a 5/16" inner diameter and rated to 350 PSI, it pairs a 1/4" NPT brass male fitting (fixed) with a 1/4" flared B female swivel (ball seat) so you can connect many torch heads and regulators while keeping a flexible, kink-resistant line between the appliance and the fuel source.

Will this hose fit my torch or propane appliance?

Compatibility depends on your device’s fitting type and regulator setup. The hose uses a fixed 1/4" NPT male on one end and a 1/4" flared B (ball seat) female swivel on the other; the flared B is not the same as a 1/4" female NPT, so confirm your appliance or adapter matches a flared connection.

• Hose inner diameter: 5/16" for common torch fuel flow
• One end: 1/4" NPT brass male, does not rotate
• Other end: 1/4" female flared B swivel (ball seat) for easier hookup
• Check your device sizing and regulator type before purchase

How safe is it to use near heat or open flame?

This hose is rated to 350 PSI for low-pressure propane applications, but it must be kept clear of open flames and high-temperature surfaces. Always route the line away from burners and hot metal, and connect the hose to a low-pressure regulator appropriate for your appliance.

• 350 PSI maximum rating for typical low-pressure propane systems
• Keep hose away from open flame and heat sources during use
• Use with a low-pressure regulator and standard propane appliances
• Inspect fittings and hose for damage before each use

What tasks and appliances can this extension hose handle?

The onlyfire hose extends the reach of torch heads and portable propane gear while maintaining reliable fuel flow. It’s suitable for propane torches used in soldering, roofing, or craftwork and can also be used with grills, turkey fryers, camping stoves, and many RV or outdoor appliances that accept a flared B connection.

• Propane torch extension for plumbing, roofing, and metalwork
• Portable grills, turkey fryers, and camping/RV cooking equipment
• Works with many manufacturers’ torches and portable appliances
• 25-foot length gives flexible workspace and safer distance from cylinders

How should I install and maintain this propane hose?

Installation is straightforward: attach the fixed 1/4" NPT male to the compatible regulator or fitting and tighten the 1/4" flared B female swivel to your torch or appliance. Regular maintenance includes leak testing, visual inspections, and storing the hose away from sunlight and extreme heat when not in use.

• Tighten connections securely; avoid cross-threading the fittings
• Perform a soap-and-water leak test after each installation
• Inspect for cracks, abrasions, or hardening before each use
• Store coiled in a cool, dry place away from direct heat sources

Who is this for: The onlyfire 25FT 350PSI hose is aimed at DIYers, tradespeople, and outdoor cooks who need extra reach from a reliable, brass-fitted propane line. If you use torches, portable grills, fryers, or camping/RV appliances and require a 25-foot extension that accepts a 1/4" flared B connection, this hose offers a practical, heavy-duty option—provided your equipment matches the specified fittings and you follow basic propane safety practices.