A full 12 feet of flexible, UL- and CGA-approved LP gas hose built for RV propane systems. The Marshall Excelsior MER413-144 delivers a safe, reliable connection between your RV's propane regulator, tanks, or appliance supply lines -- with the pressure rating and pull-test strength to handle real-world road vibration and use.
When your existing propane hose is too short to reach a second tank, a remote regulator, or a slide-out appliance hookup, the MER413-144 gives you 144 inches of flexible reach without compromising safety. Both ends are 3/8" female flare (SAE 45-degree), the standard fitting found on most RV LP regulators, tank POL adapters, and appliance inlet valves.
The thermoplastic inner core is surrounded by a reinforced outer jacket with integral thermal protection. Both ferrules are fully crimped brass -- no clamps to re-tighten, no hose-clamp failures. This is a hose you install and trust.
Rated for high-pressure propane supply lines well above typical RV operating pressures, providing a substantial safety margin in any LP gas application.
Crimped brass ferrules withstand a 400 lb. pull-force test, keeping connections secure even when the hose is routed through tight spaces or subject to vibration.
Meets Underwriters Laboratories and Compressed Gas Association standards -- the certifications campground hosts, RV parks, and propane dealers look for before approving connections.
Manufactured by Marshall Excelsior, a Michigan-based company with decades of LP gas equipment experience. Backed by a limited 5-year manufacturer warranty.
Both ends of this hose use a 3/8" female flare (SAE 45-degree) fitting. This connection type is standard across the RV propane world and mates directly with:
If your regulator or appliance uses a 1/4" male flare outlet, you will need a 3/8" to 1/4" flare adapter (not included). Always confirm thread size before installation.
Marshall Excelsior builds the MER413-144 to exceed the demands of mobile propane installations:
This hose is backed by a limited 5-year manufacturer warranty from Marshall Excelsior against defects in materials and workmanship. The warranty does not cover damage from improper installation, mechanical abuse, or use outside the rated specifications.