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MB Sturgis Propane Pigtail w/ Back Check - RV Type 1 x 1/4" Male NPT - 1-5/8'

MB Sturgis Propane Pigtail w/ Back Check - RV Type 1 x 1/4" Male NPT - 1-5/8'

Item # 100473-20-MBS
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MB Sturgis Propane Pigtail w/ Back Check - RV Type 1 x 1/4" Male NPT - 1-5/8' 1-5/8 Feet 100473-20-MBS
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Pigtail makes the connection from the propane tanks on your trailer to the propane regulator. Also used to connect tanks to a high-pressure regulator to carry gas to a 2-stage regulator. Check valve prevents hazardous backflow leakage. Lowest Prices for the best propane fittings from MB Sturgis. MB Sturgis Propane Pigtail w/ Back Check - RV Type 1 x 1/4" Male NPT - 1-5/8' part number 100473-20-MBS can be ordered online at or call 1-636-306-4830 for expert service.
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MB Sturgis Propane Fittings - 100473-20-MBS

  • Hoses
  • Pigtail Hoses
  • 1-5/8 Feet
  • 1/4 Inch - Male NPT
  • Type 1 - Female
  • MB Sturgis

Pigtail makes the connection from the propane tanks on your trailer to the propane regulator. Also used to connect tanks to a high-pressure regulator to carry gas to a 2-stage regulator. Check valve prevents hazardous backflow leakage.


  • Propane pigtail connects your propane cylinder to a regulator
    • Used for single or dual tank setups on the front of your travel trailer
    • Also used to connect a remote tank to a high-pressure regulator
  • Female Type 1 fitting connects to the valve on your propane cylinder
  • Male NPT connects to a propane regulator
  • Built-in bypass mode shuts gas off when flow reaches maximum capacity for safety
    • Thermal shut-off device turns off gas flow in extreme heat caused by open flame
    • Excess-flow safety device limits gas flow in the event of a severe leak
  • Durable thermoplastic hose and brass fittings approved for LP gas only
    • Rated for high pressure and high flow rate to handle unregulated propane
    • UL569 and ANSI Z21-81 certified
  • Made in the USA


  • Temperature range: -40 F to 140 F
  • Hose dimensions: 20" long x 1/4" inner diameter
  • Hose fittings:
    • Female Type 1
    • 1/4" Male NPT
  • Maximum pressure rating: 350 psi
  • Maximum flow capacity: 450,000 Btu per hour

This propane hose is ideal for travel trailers with a split-tank system. This kind of system features 1 cylinder on the driver's side and 1 cylinder on the passenger's side of your trailer. This hose connects the cylinder on the passenger's side to a high-pressure regulator. An additional hose (sold separately) will then carry the propane from the high-pressure regulator to the 2-stage regulator on the driver's side of your trailer.

Bypass Mode for Safety

This Type 1 connector will go into bypass mode if the flow rate surpasses the maximum flow capacity for this connector, which is 450,000 Btu per hour. A ball inside of the fitting will push an internal spring down, pressing firmly against the bottom of the fitting to shut off the flow of gas.

When choosing a Type 1 connector, consider your overall propane demands and choose a connector with a flow rate that just exceeds it. That way, you won't trigger the bypass mode during normal use, but it will trigger in the event of a leak. If the bypass valve engages, stop using gas and start checking your connections for leaks.

100473-20-MBS MB Sturgis Propane Hose Assembly - RV ACME Type 1 w/ Back Check x 1/4" MPT - 20"

Customer Reviews

MB Sturgis Propane Pigtail w/ Back Check - RV Type 1 x 1/4" Male NPT - 1-5/8' - 100473-20-MBS

Average Customer Rating:  4.9 out of 5 stars   (92 Customer Reviews)

Pigtail makes the connection from the propane tanks on your trailer to the propane regulator. Also used to connect tanks to a high-pressure regulator to carry gas to a 2-stage regulator. Check valve prevents hazardous backflow leakage.


This is a high quality hose made of thermoplastic with quality fittings that is an excellent value for the price


i run a campground in Hell Michigan and i order parts from etrailer all the time they have always been pro's and i have always been happy with there products.


Purchased as a replacement for the recalled LP regulator on my travel trailer. Easy to install and they work perfect!


the hose and the regulator with the gas tape was installed. We are now safe in our 5th wheel from a propane leak. I had to get a neighbor to help as I didn't have enough hand strength to get fittings tight. etrailer helped me get all the right parts to make this happen.


Added GasStop valves on my Air Stream and needed longer pig tail hoses due to limited space. Ordering on line was easy, delivery was timely, and they fit as expected.


Good quality hose. Perfect replacement for my old degraded hoses (one was leaking). Bought the longer 20” hose to allow for a loop to reduce stress on the hose crimp connection where old hose leaked.


Original short hose kinked and cracked. This hose fit perfectly. Simple replacement. No extra fittings needed.


Etrailer got me the part I needed for my propane sytem. Thank you


This is what I ordered, and it came in quickly. I hope this will work with my Marshall regulator. Haven't g lol had the chance to try it yet but soon.

Have not used it yet. Bought this as a spare, should it be required.
William - 03/12/2022


The product is well made but I did have to get a fitting with inverted flare from the local Hardware store to match the fitting on the RV propane reducer .


I have worked with etrailer several times and their ordering process online is excellent and the gas line I requested arrived in a timely manner, no hitches (see how I did that?). I'll be back when the need arises. My rPod and I can count on your service.

So far so good! Your message was a good reminder that I need to check my hoses and lines!!
Cynthia J - 06/24/2021


Great products. Payed extra for 3 day shipping to get it in time for a trip. Didn't happen.


While there was a slight delay in shipping, you at least tried to recommend other options (although technical questions from me stumped you.) But no worries, the parts I originally ordered came off back-order much sooner than expected. Thanks for your help.


Fast shipping and great customer service


Just as described. Nice quality. Not like the cheap stuff from [online].


Order was shipped promptly and arrived in good condition. Part was quality and just what I ordered


Great service. Quick to get orders out the door. Very good selection of quality products


The short, 12 inch, original propane hoses on my toy hauler made it difficult to access and remove the tanks for refill. The new 20 inch long hoses I ordered and installed make removing and refilling the propane tanks much easier. Good product, good price. Thanks.

The 20 inch propane hoses are working great. I have had no problems with them, very good quality product.
Roy 1 - 12/19/2018


Great, fast service


I havent installed the line yet, but on first inspection it looks to be exactly what i was hoping for

seemed very sturdy but was the wrong size so never used
Roman - 07/30/2019


No leaks yet! This replaced a MB Sturgis hose on my used truck camper that developed an intermittent leak on the Propane tank side that I could not figure out how or why it was happening (very Dangerous) initially it seemed like I was doing something wrong attaching it to the propane Anyway, the old hose came with the camper and was not purchased here. So far the replacement has worked fine. I would advise people to do a leak down test at least annually and check fittings regularly. I now check all fittings with bubble solution on each trip. Your nose is also a good tool to use in addition to the other methods.


Needed longer propane hoses and eTrailer had exactly what I needed and they were delivered on time. Thank you


Fit perfectly only concern was the long shipping took 3 weeks to come order a hitch 2 weeks later and that came in 3 days I’m sure it was because hitch came ups and line came usps


I was able to order a number of different parts for my camping trailer: tires; replacement shower parts; and propane lines.
I am very satisfied with everything about e-trailer and will definitely look at their website first when looking for similar items and trailer parts for both the cars and the camper.


Excellent value. Very reasonable shipping. Exact product as stated.
My old propane pigtail was to short. This 20 inch works so much better.

After a year in service, its still doing a great job. No problems.
Bill B - 09/18/2020

Show More Reviews

See what our Experts say about this MB Sturgis Propane Fittings

  • Ambiant Temperature Rating for Camco Propane Supply Flex Hose # CAM59843
    Great news! I spoke to my contact at MB Sturgis and he informed me that 32F should not be an issue for the propane flew supply hose # 100473-20-MBS. These types of flexible hoses are intended to be used with an ambient temperature range of -40F to +140F. But to just remember when cold, they do become a little stiffer and should not be bent at too sharp of a radius. He continued to tell me that these types of flexible hoses are supposed to be able to pass a “cold weather test”. This...
    view full answer...
  • What Propane Hose Will Allow a 20 Lbs Propane Tank to Wedgewood 2 Burner Stove
    I have a solution for you. The MB Sturgis Propane Pigtail - Type 1 x 1/4 MPT- 20, # 100473-20-MBS, will allow you to connect a 20 lbs LP tank to your Wedgewood propane stove. The hose has an 1/4 MPT fitting on one end that will connect to the LP regulator on the stove. The other end uses the Type 1 ACME nut tat will connect to a LP bottle with either a Type 1 or P.O.L. connection. When connecting the hose to the LP regulator it is recommended to use white Teflon tape or pipe dope to seal...
    view full answer...
  • Troubleshooting No Propane Flow On Trailer with New Tank and New Regulator
    Yes. The pigtail could be the issue. I recommend replacing the pigtail with the MB Sturgis Propane Hose w/ Back Check - Type 1 x 1/4" MPT - 20" # 100473-20-MBS. There is an internal back-check on Type 1 fittings that could be the issue.
    view full answer...
  • Does Sturgis Make Pigtails for Natural Gas Tanks?
    I went ahead and called my contact at MB Sturgis, and they confirmed that the pigtail hoses that are listed for propane tanks can be used with natural gas tanks. However, one thing that is important to know is the measurement of the diameter of the tank that you are seeking to fit. This is because different hoses fit different measurements. The MB Sturgis Propane Hose w/ Back Check - Type 1 # 100473-20-MBS, for example, 1/4" diameter tank fitting. If you know the diameter of your tank...
    view full answer...
  • Replacement Propane Hose for Marshall HP424
    According to my research, the Marshall HP424 does have a Type 1 connection (which connects to your propane tank) and a 1/4" Male NPT connection (which connects to a dual-stage regulator). So the hose you mentioned will work as a replacement, and there are a number of different lengths if you were in need of one. - 12 Inches: MB Sturgis Propane Hose Assembly - RV Type 1 w/ Back Check x 1/4" MPT # 100473-12 - 15 Inches: MB Sturgis Propane Hose Assembly - RV Type 1 w/ Back Check x 1/4" MPT...
    view full answer...
  • Replacement Hose for Marshall Gas M4 Flexible Hose Connector with a Female Flare Fitting
    I have done a bit of research and it sounds like you need the hose that goes from the propane bottle to the regulator. We have 3 different lengths of the MB Sturgis Propane Hose Assembly. We have 12", 15", and 20" lengths. - MB Sturgis Propane Hose w/ Back Check - RV Type 1 x 1/4" MPT - 12" # 100473-12 - MB Sturgis Propane Hose w/ Back Check - RV Type 1 x 1/4" MPT - 15" # 100473-15-MBS - MB Sturgis Propane Hose w/ Back Check - RV Type 1 x 1/4" MPT - 20" # 100473-20-MBS
    view full answer...
  • What Style Connector Do I need on my Replacement Propane Pigtail Hose
    There are different options depending on what style connector you have. I have included an option for both an NPT and MIF. You would just want to check what style is on your hose to ensure you get the correct hose. NPT MB Sturgis Propane Hose w/ Back Check # 100473-20-MBS MIF MB Sturgis Propane Pigtail # 100575-20-MBS Both of these hoses have internal back checks and will let you power all of your RV's appliances. If you look at your regulator and and there are two brass adapters at...
    view full answer...
    Image 1 for
  • Propane Regulator for MB Sturgis 100473 Propane Hose
    Yes, you can use the MB Sturgis 100473 hose with a replacement single-stage regulator, which is what it looks like you need based on your photo. For the regulator you will need the Camco Single Stage Propane Regulator # CAM59013. Then for the 100473 hose you can choose the one you need based on the length: - 12 inches: MB Sturgis Propane Hose - RV Type 1 with Back Check x 1/4" MPT # 100473-12 - 15 inches: MB Sturgis Propane Hose - RV Type 1 with Back Check x 1/4" MPT # 100473-15-MBS -...
    view full answer...
    Image 1 for
  • Propane Hose For Camco Single Stage Propane Regulator
    Assuming the regulator is being connected to a propane tank with a Type 1 fitting, you'll need a propane hose with a 1/4" MPT connector to connect to the inlet of the Camco Single Stage Propane Regulator # CAM59013. That will depend on the length you need, and you can use either the 20 inch MB Sturgis Propane Hose # 100473-20-MBS or 36 inch MB Sturgis Propane Hose # 100473-36-MBS.
    view full answer...
  • Connecting 20 lb Propane Tank to Stove
    It depends on the connections you have to make, there isn't a universal tank to stove connection. For example, the Propane Pigtail - Type 1 x 1/4" MPT # 100473-20-MBS is a 20" long hose with a Type 1 Acme nut for an Acme or P.O.L. connection on your propane tank and a 1/4" Male NPT connection at the other end which normally connects to a regulator such as # 108072, though if that's what your stove uses it can connect to that as well. I have added a link to our selection of propane hoses...
    view full answer...
  • Max PSI Rating for MB Sturgis Propane Hose With Type 1 Fitting
    The MB Sturgis Propane Hose w/ Back Check - Type 1 x 1/4" MPT - 20" # 100473-20-MBS is not rated for PSI based on its function. It is rated for a max flow capacity of 200,000 BTU's per hour. For a hose and type 1 fitting that is similar but used for a different application like # 100555-72-MBS the psi rating is 350 psi max. I've attached some articles to assist further.
    view full answer...
  • Replacement Propane Parts For 2016 Jayco Trailer
    It sounds like the check valve on your regulator has come apart. Those are necessary for the operation of the propane system so you will need a new regulator. You may not have a leak on the hose and find out that the regulator was the culprit all along, but it is always safer to replace the hose as well. If the # 100473-20-MBS has the correct fittings, you may need a single stage regulator like part # CAM59013. This regulator has a 1/4-inch NPT inlet and a 3/8 inch NPT outlet connector...
    view full answer...
  • Replacement Propane Hose and Regulator for 1984 Sunglide Pop-Up Camper
    For your replacement regulator and hose, I recommend the Camco Horizontal 2-Stage Propane Regulator w/ P.O.L - 160,000 Btu/Hr # CAM59333 and the MB Sturgis Propane Hose w/ Back Check - Type 1 x 1/4" MPT - 20" # 100473-20-MBS. This replace the connections between your tank and your camper.
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  • Is A 60 Inch Propane Supply Hose Available
    For a 60 inch long propane supply hose we offer the Camco Propane Supply Hose with ACME Nut and Male Inverted Flare, 60 Inches # CAM59193. I have attached a review video of this product for you. The Propane Supply Hose with ACME Nut and Male NPT, 20 Inches # 100473-20-MBS that you referenced is the only propane supply hose we have with the Male NPT. All of our other supply hoses have the Male Inverted Flare. I have also attached a link to all of our propane supply hoses for you.
    view full answer...
  • 12 Inch Propane Supply Hose for 20 Pound Propane Tank
    Assuming that the 1 pound bottle can be removed and that the regulator on the grille can be used with a 20 pound tank then for a 12 inch supply hose you would need # CAM59053. It has a type 1 ACME nut at one end that connects to an ACME or P.O.L. connection on a propane tank. The other end is a 1/4" inverted male flare that connects to a 1/4" inverted female flare on a propane regulator.
    view full answer...
  • Will Camco Dual Regulator Allow Disconnection of One Tank for Filling While Utilizing Other Tank?
    The Camco Automatic Changeover 2-Stage Propane Regulator for Dual Propane Tanks # CAM59005 will allow you to keep the system up and running off the other tank as you remove the empty tank for filling. The regulator will automatically change over, but the pigtail like # 100473-20-MBS will also have a built in backflow preventer to keep your system from leaking gas, so you have 2 product working to protect you from issue as you refill your propane tank.
    view full answer...
  • Regulator and Hose to Connect Propane Tank to Deep Fryer
    Check the deep fryer literature or the fryer itself to find the propane pressure required by the fryer. If it is 11" w.c. you could use # CAM59013. Regarding a hose it is going to depend on the type of fitting that is on the fryer. Hose # 100473-20-MBS is commonly used with 20 or 30 pound LP tanks.
    view full answer...
  • Will MB Sturgis Propane Supply Hose Fit Horizontal 2-Stage Propane Regulator # CAM59323
    Yes, the Propane Supply Hose # 100473-20-MBS can be used with the Camco Horizontal 2-Stage Propane Regulator # CAM59323.
    view full answer...
  • Is the Humming From My GR-630 Regulator Bad and What Parts to Replace It
    The noise you're hearing is likely coming from your GR-630 regulator, and it's not a sign of anything actually being amiss; the humming noise is caused by the rubber diaphragm inside the regulator fluctuating normally to keep up with the steady demand of regulating the flow of propane to the appliances. For the vertical vs horizontal regulator situation, it doesn't really refer to the mounting orientation, but where the vent on the regulator is positioned. If the vent is perpendicular to...
    view full answer...
  • Are Back Check Valves Needed for the Camco Automatic Changeover Regulator Part # CAM59005
    The type 1 ACME hose like part # 100473-20-MBS that connects the propane tank to the Camco Automatic Changeover 2-Stage Propane Regulator part # CAM59005 has a built-in back check valve therefore you will not need to use anymore with this regulator as long as the type 1 ACME hose you are using has this feature (it should). There will need to be one back check valve on each side of the regulator.
    view full answer...
  • Winntec Model 6020 Propane Regulator Replacement
    The Automatic Changeover RV LP Gas Regulator # 37207-30395 will work in place of the winntec model 6020 with no issues at all. With pigtails I suggest the MB Sturgis Propane Hose w/ Back Check - Type 1 x 1/4" MPT - 20" # 100473-20-MBS.
    view full answer...
  • Propane Hose Needed to Connect Mini Gas Stove with Propane Supply
    Without having a picture or a specific gas stove to look up I cannot really confirm whether or not the MB Sturgis Propane Hose # 100473-20-MBS is compatible with the hose on your mini gas stove, but I can give you some information so that you can determine that yourself. The hose that you referenced has a Type 1 connection on one end that typically connects to a 20 or 30 lb propane tank. The other end has a 1/4" MPT connection that usually connects to a regulator, like part # 108072, but...
    view full answer...
  • Propane Hose Replacements for Regulator
    We do have hoses which may work for you. The MB Sturgis Propane Pigtail # 100833-24 is a type 1 cylinder connection with a 1/4" male inverted flare. This is a 2 foot hose, though we also have a 15" hose # 100833-15 and 1 foot hose # 100575-12-MBS. These hoses are also available with back check, the 20" # 100473-20-MBS, 15" # 100473-15-MBS and 12" # 100473-12. I've added links to review videos of each of these products for you to take a look at.
    view full answer...
    Image 1 for
  • Recommended Propane Regulator and 8 to 10 Foot Hose to Supply a Food Trailer
    To supply your food trailer from your 100 pound tank you're going to need a pigtail, like part # 100473-20-MBS, that goes from the tank to a regulator. The regulator needs to be a 2-stage regulator like part # 108220. Then from the regulator use part # 100040-144-MBS. It's 12 feet long so more than what you need but we don't have an 8 to 10 foot hose that has a 3/8 male to connect to a regulator with a 3/8 female flare on the other end. The next shortest option we carry is 6 feet long,...
    view full answer...

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