Connect your QCC Type I propane cylinder to your RV's two-stage regulator with confidence. This 15-inch braided hose is built to RVIA and NFPA 1192 standards, rated for 400,000 BTU per hour, and includes an integrated excess flow safety shutoff -- protection you want between your tank and your rig.
Most RVs use a two-stage propane system: a QCC Type I fitting at the tank feeds a low-pressure regulator, which then supplies the coach. The pigtail hose is the first link in that chain, and it takes the most physical stress -- bending, vibrating, and flexing every time the cylinder is swapped or the coach moves down the road.
The MER425HSS-15 replaces flimsy rubber-jacket hoses with a braided stainless steel armor layer that resists abrasion, cuts, and UV degradation. The 15-inch length gives you enough slack to position a 20 lb or 30 lb DOT cylinder without kinking the line. The MEC red Type I QCC nut is RV-approved and tightens hand-tight -- no tools or adapters needed at the tank end.
Integrated safety valve automatically restricts flow if downstream line pressure drops suddenly, such as a broken or disconnected hose. Protects against uncontrolled propane release.
Engineered to close flow in high-heat conditions, providing an added layer of protection in the event of a fire near the propane connection point.
Stainless armor jacket over the inner hose core resists abrasion, road grit, UV exposure, and physical damage -- a meaningful upgrade over bare rubber pigtails.
Every hose is individually leak tested at the factory before shipment. Brass ferrules provide reliable crimp terminations at both ends.
The tank end uses a Female QCC Type I (Quick-Closing Coupling) fitting -- the standard connection on virtually all DOT propane cylinders sold in North America, including common 20 lb (5-gallon) and 30 lb cylinders used on RVs, travel trailers, and fifth wheels. The QCC nut threads onto the POL-style service valve hand-tight; no wrench is required.
The regulator end terminates in a 1/4-inch male inverted flare (MIF) fitting, which is the standard inlet on most dual-stage RV propane regulators. This is a right-hand thread fitting that wrenches snug with a standard open-end wrench. Always apply a PTFE-rated pipe thread compound or verify your regulator inlet uses a flare seat (not pipe thread) before connecting.
The MER425HSS-15 is RVIA (Recreation Vehicle Industry Association) compliant and meets NFPA 1192 (Standard on Recreational Vehicles), which governs propane system installation and components in RVs built for the North American market. These certifications matter for insurance claims and campground compliance checks.