GasXpert 20ft Braided Propane Hose Extension — 350 PSI with Brass Conversion Couplings, 3/8" Flare

GasXpert's 20ft high-pressure braided propane hose extension is a 350 PSI, 3/8" female-flare hose kit that extends propane supply lines and includes six brass conversion couplings for wide appliance compatibility.

This 20-foot stainless-steel braided propane extension from GasXpert is built for heavy-duty outdoor use, with 3/8" female flare ends and a kit of solid brass adapters to connect grills, heaters, fire pits, RVs and other LP appliances. The hose meets high-pressure needs while remaining flexible for routing and storage; included accessories such as sealing tape and Velcro make installation and organization simpler.

How does this hose extend my propane setup safely and easily?

The hose provides 20 feet of flexible, stainless-steel braided line rated to 350 PSI and fitted with 3/8" female flare ends to mate with common appliance fittings. Solid brass adapters let you convert to multiple NPT and flare sizes so you don’t need separate hoses for each device.

• 20-foot length for extended reach from tank to appliance
• 350 PSI rating for high-pressure propane systems
• Stainless-steel braid resists corrosion and abrasion
• 3/8" female flare on both ends for secure connections

Which adapters come with the conversion coupling kit and why are they useful?

The kit includes six solid-brass adapter fittings to convert between common NPT and flare sizes, allowing a single hose to serve many appliances. Brass construction offers reliable threads and sealing surfaces for repeated assembly and disassembly.

• 3/8" NPT Male x 3/8" NPT Male — connects two NPT lines
• 3/8" Flare Male x 3/8" Flare Male — links flare fittings directly
• 3/8" NPT Male x 3/8" Flare Male — mixed-connection conversion
• 1/2" Female NPT x 3/8" Flare Male — adapts larger NPT appliances
• 1/4" NPT Male x 3/8" Flare Male — works with smaller fittings
• 1/8" NPT Male x 3/8" Flare Male — fine-thread conversion option

What materials and certifications ensure durability and leak resistance?

The hose uses a stainless-steel braided cover over a gas-rated inner tube, and all flare fittings and adapters are machined from solid brass. The assembly is rated at 350 PSI and includes CSA certification for airtightness and stability in propane applications.

• Stainless-steel braid for anti-corrosion and abrasion resistance
• Solid brass fittings and adapters for long-term thread integrity
• CSA-certified for airtightness and stability
• Includes roll sealing tape for improved thread seal

How do I store, mount, and maintain the GasXpert extension hose?

The hose is flexible enough to coil for storage and lightweight accessories in the kit help keep it tidy when not in use. Routine inspection of fittings and periodic re-sealing after disassembly will prolong service life and reliability.

• Comes with one buckle Velcro and two small Velcro straps to secure coiled hose
• Roll of sealing tape included for thread connections
• Inspect fittings and hose for wear or damage before each season
• Avoid sharp bends and direct contact with hot surfaces for longevity

Who this is for: GasXpert's 20ft high-pressure propane hose extension kit is designed for homeowners, RV owners, outdoor chefs, landscapers and contractors who need a reliable, flexible way to lengthen their propane line and adapt to multiple appliance connections. If you require a durable, portable solution that covers several thread types and offers a high-pressure rating, this kit consolidates fittings and a long hose into one ready-to-install package.