A full 10 feet of flexible, UL- and CGA-approved LP gas hose built to handle the demands of RV propane systems. The MER613-120 gives you the reach you need to connect regulators, appliances, or external tanks without adapters or awkward routing, all backed by a 350 PSI working pressure rating and a 5-year manufacturer warranty.
The Marshall Excelsior MER613-120 is a heavy-duty liquid propane gas hose designed specifically for RV, camping, and related propane system applications. At 120 inches (10 feet) in length, it provides flexible routing between tanks, regulators, and appliances where a short pigtail simply won't reach.
Both ends terminate in 3/8" female flare swivel fittings, allowing the hose to connect without twisting the line -- a critical feature when making connections in tight compartments or at awkward angles. Swivel ends significantly reduce the risk of cross-threading and stress on fittings during installation.
Rated for up to 350 PSI working pressure, well above the typical RV propane system operating range of 10-15 PSI, providing a substantial safety margin.
Both ends feature fully crimped brass ferrules for a permanent, leak-resistant seal that holds up to vibration, movement, and temperature cycling over time.
Approved by Underwriters Laboratories (UL) and meets CGA (Compressed Gas Association) standards, confirming compliance with safety requirements for LP gas service.
The thermoplastic hose body includes thermal protection, reducing risk of heat damage in under-compartment or near-appliance installations common in RV propane setups.
Both ends of the MER613-120 use 3/8" female flare swivel fittings. The swivel design allows the fitting body to rotate independently of the hose, so you can hand-tighten and wrench-tighten connections without spinning or kinking the hose. This is particularly useful when connecting to a fixed appliance inlet or a regulator outlet that does not rotate. Standard 3/8" SAE male flare fittings are the mating connection on the appliance or regulator side -- no thread adapters required for typical RV LP gas connections.
The hose body is constructed from flexible thermoplastic, selected for resistance to LP gas permeation, UV exposure, and the temperature swings common in outdoor RV use. Unlike rubber hoses that can crack or stiffen over time, the thermoplastic construction maintains flexibility across a wide temperature range. The crimped brass ferrules at each end eliminate field-assembled compression fittings, which are a common source of leaks.