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AP MER425H18 18" High Capacity RV Propane Pigtail Hose

Manufacturer

AP

<h3>About AP Products</h3><p><strong>AP Products</strong> has been a trusted name in the recreational vehicle industry for over three decades. <a href="/2843-ap">AP Products</a> was established in the early 1990s with the modest goal of supplying packaged hardware to the RV market — and has since grown into one of the most comprehensive sources for RV replacement parts and accessories available. Today, the brand serves everyone from weekend campers to full-time RV enthusiasts, as well as the manufacturers who build their rigs.</p><p>What sets AP Products apart is its deep focus on the RV segment. Unlike general automotive parts suppliers, AP Products designs and sources components specifically engineered to meet the unique demands of motorhomes, travel trailers, and fifth wheels. Whether a component needs to withstand road vibration, outdoor weathering, or the repeated use of a full-time lifestyle on wheels, AP Products builds its catalog with those realities in mind.</p><h3>A Broad Catalog Built for RV Owners</h3><p>The AP Products lineup spans a remarkable range of categories. RV doors are among the brand's flagship offerings — replacement entry doors and door components engineered to fit a wide variety of RV makes and models. Complementing these are <a href="/200430-foam-weatherseal-tape-ap-2843">foam and weatherseal tapes</a>, which play a critical role in keeping an RV's interior protected from moisture, drafts, and road debris. Proper sealing is one of the most overlooked aspects of RV maintenance, and AP Products offers purpose-built solutions to address it.</p><p>Security is another area where AP Products delivers. Their lock boxes provide RV owners with a reliable way to secure valuables or provide keyless entry access — an increasingly important feature for travelers. Rounding out the hardware side of their catalog, AP Products also offers a variety of <a href="/2843-ap-door-latches-200339">door latches</a> suited for RV interior and exterior applications, ensuring that cabinets, compartments, and entry points stay securely closed while in transit.</p><h3>Why RV Owners and Manufacturers Trust AP Products</h3><p>Beyond individual parts, AP Products carries adhesives and sealants, lighting, electrical components, extrusions, running gear and brake accessories, and a wide selection of slide-out parts and seals. This breadth makes AP Products a one-stop resource for RV service shops and DIY owners alike. The brand's parts are designed for straightforward installation, reducing downtime and getting rigs back on the road faster.</p><p>Whether you're replacing a worn entry door seal before a cross-country trip or sourcing a latch for a storage compartment, AP Products offers dependable, application-specific solutions built with the RV lifestyle in mind.</p>

Part Number

MER425H18
09/12/2036 12:58 PM
Sale Price

$24.60

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The AP MER425H18 is an 18-inch high capacity propane pigtail hose designed specifically for RV, trailer, and motorhome applications. This professional-grade propane hose connects your LP gas cylinder to the propane regulator without requiring a wrench, featuring a convenient hand-tightened Type I ACME connection.

Key Features:

  • 400,000 BTU capacity - specifically designed for high-demand applications including motorhomes, trailers, and on-demand hot water heaters
  • 1/4 inch inside diameter high flow design for maximum propane delivery
  • Female QCC Type I (ACME) connection to 1/4 inch male inverted flare
  • Integrated thermal protection - heat-sensitive fitting closes cylinder valve between 240°F and 300°F in case of fire
  • Excess flow protection - built-in flow-limiting device shuts down flow to maximum 10 SCFH if excessive gas flow is detected
  • 18 inch length provides flexible positioning between cylinder and regulator
  • RVIA and NFPA 1192 compliant for RV applications
  • UL/CGA approved for safety and reliability

Marshall Excelsior MER425H series pigtails are required equipment for RV propane systems and meet the highest industry standards. The easy-to-tighten nylon nut swivels on the connector fitting for quick, tool-free installation. This high flow pigtail is engineered with both excess flow and thermal link safety features to protect against propane leaks and fire hazards.

Good inventory, good prices

Great!

great

Fast and easy

good so far

Easy to find my product and it came fast thanks for your service

quick and easy

Great prices and fast shipping!!!

Been good although I never got a response about the wrong gaskets in my last order.

Great shopping experience.

Autoplicity created a great shopping experience. It was very easy to find the parts I needed for the vehicle I needed. I will definitely use Autoplicity again!

Good so far

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