Marshall Excelsior Co. MER421-144 Propane Hose 12ft 1/4 Inch ID Thermoplastic

The Marshall Excelsior MER421-144 is a flexible thermoplastic propane hose designed for LP gas applications in RVs, motorhomes, and other propane systems. This 144-inch (12-foot) hose features 1/4-inch internal diameter construction and provides reliable, flexible gas line connections between cylinders and appliances.

Key Features:

• 1 inch-20 female swivel fitting on one end, 1 inch-20 male swivel fitting on the other
• 144-inch (12-foot) approximate overall length for extended reach
• 1/4-inch internal diameter for adequate propane flow
• Rated for up to 350 PSI working pressure
• 400-pound pull test rating for secure connections
• Fully crimped brass ferrules for leak-free performance
• UL and CGA approved for safety and compliance
• Flexible thermoplastic construction resists kinking and weathering

This hose comes complete with both end fittings factory-installed and is ready for immediate use. The thermoplastic material provides excellent durability while remaining flexible in various temperature conditions, making it ideal for RV and outdoor propane applications.

Important Safety Note: Excess flow valves may not activate if downstream breaks or leaks do not meet or exceed the valve's closing flow rate, or if the installed valve exceeds the system's flow capacity. Always ensure proper installation and regular inspection of propane system components.