A short, heavy-duty LP gas hose built for RV propane systems where a rigid connection is not practical. The Marshall Excelsior MER613-12 connects two 3/8" female flare swivel fittings with a flexible thermoplastic hose rated to 350 PSI working pressure -- well above the operating pressures of standard RV LP regulators and appliances.
The MER613-12 is a 12-inch propane pigtail hose designed for liquid propane gas service. Both ends terminate in 3/8" female flare swivel fittings, letting you make secure, leak-free connections without twisting or stressing the hose body during installation. The swivel design is especially useful in tight underbelly compartments and propane locker setups common in travel trailers, fifth wheels, and motorhomes.
Marshall Excelsior has manufactured LP gas equipment in the USA for decades. This hose carries UL listing and CGA approval, meeting the safety requirements demanded by RV manufacturers, propane dealers, and inspectors. Crimped brass ferrules at each end provide a permanent, vibration-resistant seal -- no clamps to re-torque over time.
Rated well above typical RV regulator output. Handles both vapor and liquid LP service safely.
Swivel fittings allow easy hand-tight positioning without twisting the hose body during hookup.
Meets recognized safety standards for LP gas hose assemblies used in RV and stationary applications.
Factory-crimped ends eliminate field-assembled clamp joints -- the most common source of LP hose leaks.
The hose body is flexible thermoplastic, compatible with LP gas (propane) service. It includes built-in thermal protection to resist heat from nearby appliances, engine compartments, and summer ambient temperatures. The overall length of 12 inches makes this a pigtail-style connector suited for short runs between regulators, manifolds, cylinders, and appliances -- not long distribution runs.
Beyond the 350 PSI working pressure rating, Marshall Excelsior rates this assembly to 400 lbs pull test, confirming the integrity of the crimped ferrule-to-hose bond. In an RV application where hoses can be inadvertently tugged during storage bay access, this mechanical strength rating matters as much as the pressure rating.