Mangueras de gas LP

What size LP gas hose do I need for my RV?

Most RV propane hoses use 1/4" inverted flare or 3/8" female flare fittings, with lengths ranging from 12" pigtails (tank to regulator) to 5-foot and longer supply lines. Check the existing hose's end fittings and overall length before ordering, and confirm the working pressure rating matches your system (typically 350 PSI for high-pressure hoses upstream of the regulator). Common part numbers in this collection include the SH37F pigtail and standard ACME-to-flare assemblies.

Are these propane hoses rated for RV and travel trailer use?

Yes. Every hose in this collection meets UL 569 or UL 21 standards for LP gas service and is built for the vibration, temperature swings, and outdoor exposure RV plumbing sees on the road. Rubber hoses use a thermoplastic or neoprene core with braided reinforcement, and brass fittings are CGA-compliant. If you are running new gas lines or replacing a leaking section, also review our RV winterizing kits to protect the system through the off-season.

What is the difference between a pigtail hose and a supply hose?

A pigtail (like the SH37F) is a short 12" to 15" hose that connects each propane tank to a two-stage auto-changeover regulator. A supply hose runs from the regulator outlet to the trailer's gas manifold and is usually longer with different end fittings. Replace pigtails in pairs so both tanks pull through hoses of equal age and condition.

How often should RV gas lines be replaced?

Inspect LP hoses every trip and replace them every 5 to 7 years, or sooner if you see cracking, soft spots, fitting corrosion, or a soapy-water bubble test failure. Hoses degrade faster in UV exposure and extreme heat, so snowbird rigs and full-timers in hot climates should err on the shorter end. For related power and safety upgrades, see our RV electronics collection covering LP detectors and monitoring.

Do you ship LP gas hoses, and what is the return policy?

All hoses in this collection ship via standard ground carrier, with free shipping on orders over $100. Unused hoses in original packaging can be returned within 30 days. If you need help matching a fitting thread or confirming pigtail length for your regulator, text or call our team at 817-984-1852 before ordering.