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Marshall Excelsior Co. MEGR-253H Excela-Flow Two-Stage Automatic Changeover LP Gas Regulator

Manufacturer

Marshall Excelsior Co.

<h3>About Marshall Excelsior Company (MEC)</h3><p><strong>Marshall Excelsior Company (MEC)</strong>, headquartered in Marshall, Michigan, is a precision manufacturer of world-class LPG and NH3 (Anhydrous Ammonia) equipment. For over half a century, MEC has been at the forefront of gas control innovation, engineering reliable solutions for Bulk Plant, Transport, Delivery/Dispensing, and Domestic and Recreational applications worldwide.</p><p>MEC's roots trace back to the manufacture of brass fittings and copper pigtails — the foundational product lines that launched the company. Over the decades, those humble beginnings evolved into a comprehensive portfolio of liquid and gas valve solutions, pressure relief devices, pressure regulating control valves, and a full range of accompanying equipment. Today, MEC is widely recognized as one of the industry's most trusted names in gas-handling technology, with proprietary product lines such as the Excela-Flo&trade; regulators, Excela-Flange&trade; truck and plant equipment, Excelerator&trade; internal valves, Turbo-Flo low-emission equipment, and Accu-Max&trade; float gauges — each engineered to meet demanding operational requirements.</p><p>Quality is central to everything MEC produces. Every product is manufactured under rigorous standards, and MEC backs its equipment with a 5-year warranty alongside an impressive 25-year regulator service life — a testament to the durability built into each component. The company also operates the industry's first LPG flow test laboratory at its Marshall, Michigan headquarters, where products are validated using actual liquid propane rather than water or air, ensuring real-world performance before any product ever reaches the field.</p><p>In 2024, MEC was acquired by <strong>OPW Global</strong>, a division of Dover Corporation (NYSE: DOV), further reinforcing its financial backing and global reach. The acquisition positioned MEC within Dover's Clean Energy &amp; Fueling segment, expanding its ability to serve customers across international markets while maintaining the engineering excellence and customer-first approach that built its reputation.</p><p>MEC's transport and heavy-equipment heritage makes it a natural fit for demanding vehicle and fleet applications. Their precision-engineered <a href="/7451-marshall-excelsior-co-hvac-heater-control-valve-6860">HVAC heater control valves</a> deliver the tight tolerances and reliable gas-flow regulation that heating systems depend on — especially in commercial and fleet vehicles operating in harsh conditions. Equally important to transport operators, MEC's <a href="/7451-marshall-excelsior-co-air-brake-fitting-17275">air brake fittings</a> reflect the same commitment to safety and durability that has defined the brand since its earliest days manufacturing brass fittings for the LPG industry.</p><p>Whether you are maintaining a propane delivery fleet, equipping a bulk plant, or sourcing precision fittings for heavy-duty transport vehicles, Marshall Excelsior Company delivers engineered solutions backed by decades of innovation, rigorous testing, and a global support network.</p>

Part Number

MEGR-253H
09/12/2036 12:30 AM
Sale Price

$81.19

In Stock (10+)

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Usually delivered within 2 days

free shipping

FREE SHIPPING

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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 Marshall Excelsior Co. MEGR-253H Excela-Flow is a two-stage automatic changeover regulator designed for seamless LP gas vapor flow management in RV, marine, and residential propane systems. This regulator automatically redirects gas flow from an empty service cylinder to a reserve cylinder without any interruption of service, ensuring continuous operation of your appliances.

Key Features:

  • Automatic changeover functionality switches between cylinders without service interruption
  • Easy-to-read visual indicator changes from green to red when service cylinder is empty
  • Two-stage regulation for consistent pressure delivery and improved appliance performance
  • Maximum inlet pressure rating of 250 PSI
  • Durable die-cast zinc body with raw zinc/powder coat exterior finish
  • Fabric-reinforced molded diaphragm with O-ring bonnet/body seal
  • Internal relief valve with spring-loaded design for safety
  • UL Listed to UL 144 standards for quality and safety assurance

Specifications:

  • Inlet Connection: 1/4" Female Inverted Flare
  • Outlet Connection: 3/8" FNPT (Female National Pipe Thread)
  • Mounting Holes: 3-1/2" on center for secure installation
  • Construction: Die-cast zinc bonnet and body

This automatic changeover regulator is ideal for applications requiring uninterrupted LP gas supply, including RVs, motorhomes, travel trailers, and residential propane systems with dual cylinder setups. The color-coded indicator makes it easy to identify when it's time to replace or refill your empty cylinder.

great job

very easy to use.

Good pricing and fast delivery time.

Great experience with the process of order.

Thanks for the quick delivery and affordability

Easy to find what I need. Easy to order.

Order took a few days to ship but when it did it arrived fast.

It has been interesting not very many parts for 1970 VW bug

THIS IS FOR A 2000 HONDA PRELUDE AUTOMATIC ..PLEASE MAKE SURE THIS HOSE FITS THIS VEHICLE

All seemed to go great.

Quick and easy

Fast and easy

Great prices fast shipping

I purchased "Carrand Whisk Broom 10'' W Label",after exhaustive research for this particular item...they have the BEST/LOWEST COST for this item anywhere!!<br><br>Shipped in a timely manner too!<br><br>Will do business here again in the future,as they have prices that are LOW,plus the great products are found here too.<br><br>Thanks to the staff for a great online shopping experience!

Cool

Thanks! glad you had the parts!

Autoplicity had the lowest listing price for a part which I had done extensive research. To make the deal much sweeter, free shipping! On top of that, part was delivered in only a few days! Really, there was no reason NOT to order from them. Great prices and fast response are the reasons why I look forward to continued business with Autoplicity. Overall a positive experience, so I highly recommend.

Ordered a hard to find in Lagos fuel sender for my 1998 Benz c280 and i had it delivered on time for delayed reapirs. Order #6886

Great Service

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