Marshall Excelsior Co. Hoses

Marshall Excelsior Co. LP Gas Hoses: Built Where It All Began

When Marshall Excelsior Company (MEC) was founded in 1976, hoses were literally the first product off the line. Founder Jeffrey Begg started the company making hoses, brass fittings, and pigtails — and that foundational expertise has never left the brand's DNA. Today, MEC's LP gas hoses represent decades of refinement, field-proven engineering, and a commitment to the safety standards that propane professionals and RV enthusiasts depend on every day.

What Sets MEC Hoses Apart

Marshall Excelsior hoses are engineered specifically for LPG applications, covering domestic, recreational, and commercial use cases. The lineup spans several distinct construction types, each suited to a different operating environment:

• Thermoplastic LP Gas Hoses — MEC's core Series lines (including the 401, 407, 421, and 426 Series) are constructed from durable thermoplastic with brass end fittings. These hoses balance flexibility with chemical resistance, making them a go-to for RV propane systems, portable cylinders, and appliance connections.
• High-Pressure Hoses — Models like the MER410 series are rated for up to 350 PSI working pressure and are designed for connections between regulators and demanding appliances such as fish cookers, smokers, and torches. Many feature built-in thermal protection for an added layer of safety.
• Stainless Steel Braided Hoses — The 425 Series offers stainless steel braiding over a thermoplastic core, delivering higher burst strength and a premium look for installations where durability and aesthetics both matter.
• Pigtail Hoses — Flexible pigtails in a variety of lengths (from 15" to 60" and beyond) serve as the critical link between bulk storage tanks and downstream regulators or appliances, absorbing vibration and thermal expansion in the line.

Safety Certifications You Can Trust

MEC hoses are manufactured under rigorous quality standards, and many models carry approvals from Underwriters Laboratories (UL) and the Canadian Gas Association (CGA). These certifications are not incidental — they reflect MEC's stated mission to create the safest equipment solutions for everyday gas-handling operations. For any propane application, knowing a hose meets UL and CGA standards provides critical peace of mind.

Connections and Compatibility

One of the most practical strengths of the MEC hose catalog is its breadth of connection options. Depending on the application, you'll find hoses terminated with QCC (Type I) quick-connect fittings for hand-tight cylinder connections, standard NPT threads, inverted flare fittings, POL (soft-nose) connections for older-style tanks, and ACME swivel threads common in RV systems. This variety means there's a MEC hose sized and fitted for virtually any LP gas hookup scenario — from a backyard grill to a full RV propane system.

Whether you're a propane dealer stocking service parts, an RV owner replacing a worn line, or a technician specifying parts for a bulk plant installation, Marshall Excelsior Co. hoses deliver the combination of certified safety, application-specific design, and long service life that the LP gas industry has trusted for over half a century.