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Marshall Excelsior Co. MER425-15P 15" RV Thermo Pigtail Propane Hose

Manufacturer

Marshall Excelsior Co.

<h3>About Marshall Excelsior Company (MEC)</h3><p><strong>Marshall Excelsior Company (MEC)</strong> has been a cornerstone of the LPG and anhydrous ammonia (NH3) equipment industry since its founding in 1976 in Marshall, Michigan. What began as a manufacturer of brass fittings and copper pigtails has grown, over the course of five decades, into one of the most recognized names in precision gas flow control. Today, MEC engineers and manufactures equipment that supports bulk plant operations, transport, delivery and dispensing, and domestic and recreational applications worldwide.</p><p>MEC's reputation rests on a commitment to safety, low-emission design, and relentless innovation. The company operates under a rigorous ISO 9001 quality management system and has filed dozens of patents over its history. Its well-known product lines — including the <strong>Excela-Flo</strong> regulators, <strong>Excela-Wynd</strong> hose reels, <strong>Excela-Flange</strong> valve technology, and <strong>Turbo-Flo</strong> low-emission equipment — are trusted by contractors, utilities, OEM partners, and end users around the globe. In 2024, MEC was acquired by Dover Corporation, joining its OPW Global operating unit within Dover's Clean Energy &amp; Fueling segment, further cementing MEC's position as a world-class flow control solutions provider.</p><h3>Core Product Categories</h3><p>MEC's catalog spans a wide range of gas handling and control components. Their Gas Cylinder Pressure Regulators are among the most recognized products in the lineup — covering single-stage, two-stage, twin-stage, and high-capacity designs for residential, commercial, industrial, and recreational uses. Whether you need precise outlet pressure for a home appliance or a high-demand commercial heating system, MEC's MEGR-series regulators deliver proven, reliable performance.</p><p>For system builders and installers, MEC's <a href="/200539-hoses-marshall-excelsior-co-7451">Hoses</a> — including thermoplastic LP gas hoses, stainless steel braided high-capacity hoses, and pigtail assemblies — provide the flexible, durable connections that complete a safe gas system. These hoses are engineered to handle the demands of propane cylinder connections, grill hookups, RV systems, and more, with many models carrying UL and CGA approvals.</p><p>MEC also manufactures a broad range of <a href="/7451-marshall-excelsior-co-hvac-heater-control-valve-6860">Heater Control Valves</a> designed for LP gas and natural gas heating applications. These flow control valves are key components in residential and commercial heating systems, ensuring precise gas delivery and safe operation across a variety of heating equipment configurations.</p><p>Rounding out the system, MEC's Adapters and brass fitting components are the practical connectors that tie gas systems together. From standard NPT adapters to specialized excess-flow fittings, these components reflect MEC's roots as a precision brass fittings manufacturer and its ongoing commitment to system-wide compatibility and safety.</p><h3>Why Choose Marshall Excelsior?</h3><ul style="list-style:disc"><li><strong>Decades of engineering expertise</strong> in LPG and NH3 gas handling equipment</li><li><strong>ISO 9001-certified manufacturing</strong> with rigorous quality standards on every product</li><li><strong>Industry-recognized product lines</strong> such as Excela-Flo, Turbo-Flo, and Excela-Flange</li><li><strong>UL and CGA approvals</strong> on many hose and regulator products</li><li><strong>Global sales network</strong> with regional customization options for diverse market needs</li><li><strong>Backed by Dover Corporation</strong> and OPW Global, a leader in clean energy and fueling solutions</li></ul>

Part Number

MER425-15P
09/12/2036 5:31 PM
Sale Price

$26.30

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Marshall Excelsior MER425-15P is a 15-inch flexible thermoplastic propane pigtail hose designed specifically for RV applications. This UL and CGA approved hose provides a safe, reliable connection between your RV's auto changeover regulator and propane cylinders without requiring tools.

Key Features:

  • Green female QCC Type 1 ACME nut connection for tool-free installation
  • 1/4" male inverted flare fitting for regulator connection
  • Built-in thermal protection that activates between 240°F and 300°F to shut off gas flow
  • Excess flow protection device limits flow to maximum 10 SCFH if excessive flow is detected
  • High flow capacity rated for 200,000 BTU applications
  • Rated for 350 PSI working pressure with 400 pound pull test rating
  • Fully crimped brass ferrules ensure secure, leak-free connections
  • Flexible thermoplastic construction for durability and ease of installation

The MER425-15P features dual safety mechanisms: a heat-sensitive thermal shutoff that closes the cylinder valve when exposed to excessive heat, and an internal flow-limiting device that restricts gas flow if an abnormal surge is detected. This retail-packaged unit is made in the USA and approved for RV use, making it an essential safety component for your recreational vehicle's propane system.

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Fast shipping, Great prices. After ordering,they sent out an email stating some items ordered may ship from the manufacturer. So, I was thinking item may take a few weeks to get. The next day I recieved email with tracking numbers saying item has shipped. So I was think ups ground 5 days maybe. I check on tracking numbers and items was out on truck for deliver. Nice! Ordered on Weekend got item on Tuesday.

I ordered this product and Wednesday in the morning and it was on my door step Thursday morning with regular shipping. The ordering process was super easy and the price was $35 cheaper than any other online retailer. The Rack is awesome, easy to assemble took me about 20 minutes by myself, put on my jeep hooked up the bikes and off I went, fantastic design, I highly recommend the Rola NV2 bike rack and highly recommend Autoplicity

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