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

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

Part Number: 100473-12
1854 Reviews | 51 Questions
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 Propane Fittings
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100473-12 - 1/4 Inch - Male NPT MB Sturgis Hoses
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100473-12 - 1/4 Inch - Male NPT MB Sturgis Hoses
100473-12 - Pigtail Hoses MB Sturgis Propane Fittings
100473-12 - Type 1 - Female MB Sturgis Propane Fittings
MB Sturgis Hoses - 100473-12
MB Sturgis 1/4 Inch - Male NPT Propane Fittings - 100473-12

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Propane Fittings 100473-12 - 1/4 Inch - Male NPT - MB Sturgis
MB Sturgis Propane Pigtail w/ Back Check - RV Type 1 x 1/4" Male NPT - 1' 1 Foot Long 100473-12
MB Sturgis Propane Fittings - 100473-12
MB Sturgis Type 1 - Female Propane Fittings - 100473-12

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

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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. Great 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' part number 100473-12 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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MB Sturgis Propane Fittings - 100473-12

  • Hoses
  • Pigtail Hoses
  • 1 Foot Long
  • 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.


Features:

  • 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


Specs:

  • Temperature range: -40 F to 140 F
  • Hose dimensions: 12" 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
  • 1-Year limited warranty


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.



100473-12-MBS MB Sturgis Propane Hose Assembly - RV Type 1 w/ Back Check x 1/4" MPT - 12"







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Customer Satisfaction Score:

Ratings & Reviews

4.7

1854 reviews
5 Stars
(1564)
4 Stars
(195)
3 Stars
(27)
2 Stars
(21)
1 Star
(47)
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by:
Awesome product! But more importantly, the company was great to deal with. I opted for the UPS delivery. Glad I did. I got a breakdown from all aspects of the delivery along It’s time of order,to time of delivery.Product seems to work superb. works better than the lines that came with our camper. In fact, I thought my one tank was empty because it would not light my stove. I was glad I tried it after putting the new line on! it now works. I have two lines and two tanks and even with the regulator set to the tank with the line that I thought was good, from the factory. It also must have been bad! because now that I replaced both lines my tanks, I seem to have more usable propane in them, which saves me money from filling a tank. Where beforeI thought the propane tank was empty and actually still had some propane still in it.
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by:
Installation was easy and seamless. The regulator worked as it should once the gas was turned on.
by:
I know I can always get high quality components from e-trailer! This order was no exception.
by:
High quality hose, fit our 2011 Jayco 22FB perfectly. I replaced both of the original pigtails and the changeover/regulator.
by:
2013 EverGreen RV I-Go Lite Travel Trailer
Super fast shipping when it counts
by:
Naomi made researching what I needed and ordering the parts a breeze. When UPS broke down Tyler in Customer Service. With above and beyond by searching for sister stores around me while I would be traveling to see if I could pick up parts elsewhere. The parts did show up the next day, but that was some of the best Customer Service I have ever experienced.
by:
Product appears to be well made and shipping was fast. Got both my propane hoses replaced on my camper. Customer service was very helpful and pleasant to deal with.
by:
2017 Ram 1500
Fit right, looks to be good construction. I had to add teflon tape as it leaked at first — it would be helpful to add that to the Information block, as I found that info in Q&A.
by:
Fits good and doesn’t leak. I had purchased some from Amazon and both pigtails leaked immediately after installing. Not worth the risk of saving a few bucks.
by:
Great product! Fit perfectly
by:
Good quality and works great
by:
Thanks for the quick service.
by:
easy and quick to hook up
by:
Looks okay, I'll let you know if its really good if it lasts more than two years, which is about as long as the last one survived.
by:
First one leaked jyst behind the type-1 connector at the hose. I was promptly sent another that didn't leak. Quality customer service and a good product.
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by:
So far they’ve lasted 2 days! Happy so far!
by:
2002 Keystone Cougar Fifth Wheel
They may be too short.
by:
The propane pigtail was great quality and is working perfectly. etrailer.com fulfilled the order quickly and accurately, and I received it right away.
by:
Made in USA! Thank you! I tried to by local, still waiting for a call back 2 1/2 weeks later...etrailer will be my first stop for my next RV need!
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by:
Great fit and an awesome product!
by:
Correct part. Worked fime.
by:
It arrived quicker than promised. Was easy to install. It fits and works perfectly! No more leaky hose to my propane tank.
by:
This is what you want. Don't buy the cheap chinese crap. I did to replace original USA made pigtails (15 years old) and after losing a couple of tanks of propane, figured out they were slowly leaking. Cheap pigtails were only a couple of years old too. Don't let the fancy stainless steel braiding fool you like it did me.
Steve profile picture

Steve

2/21/2025

After a year, I stand by my original review. The good stuff is worth the price.

Jerred H. profile picture
Etrailer Expert

Jerred H.

2/21/2025

@Steve That's great to hear! Thanks for getting back to us!
by:
Seem like they are good quality and matches description
by:
A high-quality version of a product I won't skimp on, perfect for my Airstream trailer.
Rickcaz profile picture

Rickcaz

7/9/2025

The MB Sturgis pigtail is going strong, from desert heat to mountain camps with a bit of snow. I have decided this is the only brand to buy. I plan to purchase backups. Other brands fail frequently at rallies, with bees buzzing around the propane box. My original MB Sturgis products lasted over 10 years.

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See what our Experts say about this MB Sturgis Propane Fittings

Do you have a question about this Propane Fitting?
  • Looking For LP Propane Hose For Lance 820 Truck Bed Camper P/N HP424-6 Model A4
    Hey Jason! I believe you are looking for a standard propane pigtail such as one of these guys here: - 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 # 100473-15-MBS - 20 Inches: MB Sturgis Propane Hose Assembly - RV Type 1 w/ Back Check x 1/4" MPT # 100473-20-MBS This connects to the propane tank and runs into the propane regulator. If that doesn't sound...
    view full answer...
  • Do You Need Teflon Tape For A Propane Pigtail Connector.
    Yes, you will need teflon tape rated for use with propane. The MB Sturgis Propane Hose Assembly - RV Type 1 w/ Back Check x 1/4" MPT - 12" # 100473-12 does not have an inverted flare in it so it will require tape on the end leading away from the propane tank. An example of the inverted flare can be seen on the MB Sturgis Propane Pigtail - Stainless Overbraid - Type 1 x 1/4" Male Inverted Flare - 2' # 100833-24. If you look at the fitting running away from the tank you will see the flare. If...
    view full answer...
  • How to Remove Quick Disconnect Adapter From POL Fitting on DOT Propane Tank
    There isn't really any advice I have on removing the quick disconnect fitting other than getting a wrench and plenty of elbow grease. It's in a POL thread which means it's a left-hand thread so keep that in mind. Once you get the quick disconnect out you can use a standard pigtail hose with a Type 1 ACME nut like part # 100473-12 on it.
    view full answer...
    Image 1 for
  • Hoses and Regulators Needed to Add Dual Tank Propane Setup to Trailer
    I attached a picture that shows what the typical dual tank setup looks like with the accessories needed labeled. First thing you need is pig tails to go from the tanks to the regulator like the part # 100473-12. Then for a dual tank regulator with automatic changeover we have the part # 37207-30395 that each of the pigtails would connect to. Then for a 12 foot long extension hose that would plug into outlet of the regulator you'd want the part # 100040-144-MBS. From there you'd connect...
    view full answer...
    Image 1 for
  • 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
  • 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...
  • Propane Pigtail That Connects to the Propane Takes and Has an NPT Fitting at the End
    Hey, Corde. The type of hose you are looking for comes with either a 1/4 Inch male NPT or the 1/4 Inch MIF. Since you're not needing the MIF you would want to pick up MB Sturgis propane pigtail part # 100473-12. This one is a 12" hose so if you need something longer we do also have it in a 1-1/2 ft part # 100473-20-MBS and a 2ft part # 100473-24-MBS. Do you have a single tank set up or a dual tank set up?
    view full answer...
  • Should Propane Leak From The Hose When I Remove The Tank on Fifth Wheel Trailer
    You are correct, gas should not be able to leak from the hose when you remove the tank. It sounds like you have a stuck or defective check valve in the regulator or the pigtail. Sometimes corrosion can build up and cause the back check valve to stay open. Some customers have been able to use a small amount of spray lubricant or PB Blaster to loosen up any build up that may have caused the check valve to stay open, but your best option is to replace the regulator and the hose completely,...
    view full answer...
  • Pigtail Hose And Adapter Needed To Connect To A 14mm x 1.5 Male Propane Fitting
    Hey Layne, We don't currently offer metric fittings so you would need to get the correct adapter from your local hardware store, but we can hook you up with the pigtail hose portion of this. We offer pigtail hoses with a 1/4" male inverted flare (MIF) # 100575-12-MBS or 1/4 male NPT # 100473-12. Both are a foot in length so I would just see whether the npt or MIF is cheaper and go with that option.
    view full answer...
  • Parts Needed to Add Dual 20 lb Propane Tanks to Utility Trailer Camper Conversion
    Hey Wayne! In addition to the parts you listed you will also need two pigtail hoses to connect to your propane tanks. Also, we do not have a dual plastic tank cover so that is something you will have to source elsewhere. I recommend the following: -Complete Propane Tank Holder Mounting Kit for 20-lb Tanks - White # 37220WH -JR Products Automatic Changeover 2-Stage Propane Regulator # 37207-30395 -MB Sturgis Propane Pigtail w/ Back Check # 100473-12 (two of these) -MB Sturgis Propane...
    view full answer...
  • Propane Pigtails Made in USA
    The MB Sturgis Propane Hose Assembly - RV Type 1 w/ Back Check x 1/4" MPT - 12" # 100473-12 are manufactured in St. Louis, MO.
    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...
  • How Do Two 100 lb Propane Tanks Normally Connect
    Using a dual stage, automatic changeover regulator like the part # CAM59005 would be what you'd want to start with. You'd basically feed both tanks to this with pigtails like the part # 100473-12.
    view full answer...
  • Recommended Adapter Fittings To Go From A 1/4" NPT Male Fitting To A 3/8" Female Flare Fitting
    From what you're saying you have a 3/8 Female Flare fitting on your regulator and need to connect to propane tank with a pigtail hose. While we don't currently carry an adapter hose to meet this need we do have some adapters that can help get you there. You'll need to hook the MB Sturgis Propane Adapter Fitting # MBS77FR into the 3/8" female flare fitting on the regulator. From there you'll use the MB Sturgis Propane Bulkhead w/ Nut and Lockwasher # MBS47FR to connect that fitting to...
    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...
  • Supplying Camer Propane Burner and Outside Grille with DOT Propane Tank
    What you are looking to do is very possible. The first thing you need is a Tee like the part # CAM59103 which you'd run between the tank and the regulator like the part # 108220 through a pigtail like # 100473-12. The line that would go to the interior of the trailer would be the # 100040-144-MBS for the burner. Check out the diagram I attached to see how it all installs as well as the help article link I attached as well.
    view full answer...
    Image 1 for
  • Propane Hose With Back Check Valve
    The back check valve is inside of the Type-1 Male end piece on your MB Sturgis Propane Hose Assembly - RV Type 1 w/ Back Check x 1/4" MPT - 12" Item # 100473-12.
    view full answer...
  • Replacement Propane Hose With Back Check and 1/4 Inch NPT
    Thanks for the photos; we do have exactly what you need, the MB Sturgis Propane Hose Assembly # 100473-12. This is a 12 inch hose with a type 1 tank connection and 1/4" Male NPT fittings.
    view full answer...
    Image 1 for
  • Propane Hose Pigtail Replacement For 1999 Sierra Forest River
    It appears you are in need of a propane hose pigtail for your 1999 Sierra Forest River. If this is the case then you'll want to use the MB Sturgis Propane Hose Assembly # 100473-12 which is 12" in length that has a 1/4" male NPT connection on one end and a type 1 connection on the other. This product also has internal back check which will stop protentional back flow leakage.
    view full answer...
    Image 1 for Image 2 for
  • Recommended Replacement Hose From Propane Tank to Regulator on 5th Wheel
    The hose and fittings sizes are standardized for RV's. Therefore, what you have is going to be a type 1 to either a 1/4" NPT or 1/4" Male Inverter Flare. If you have the former I recommend part # 100473-12 or part # 37207-30715 if you have the latter. That said, I get why you're confused as these fittings don't actually mic out to 1/4", they will measure larger but that does not correlate to their nominal size which would be the same for measuring any sort of NPT fitting.
    view full answer...
  • What Size Male Fitting Does RV Pigtail Propane Tank Use
    For the pigtail harnesses like what you are looking for there is only 1/4 inch NPT like the part # 37207-30865. If you can source a 1/4 inch female to 3/8 inch male adapter this could would but we do not carry that specific adapter.
    view full answer...
  • 12 Propane Pigtail
    If you have a 1/4 Inch - Male NPT, I suggest the # 100473-12. If you have a 1/4 Inch - MIF, then I suggest # 100833-12. If you have brass fittings in the inlets on the regulator then you most likely have the inverted flare.
    view full answer...
  • Replacement Pigtail Propane Hose with 1/4 MPT Fitting
    Thanks so much for the pictures and I'm sorry to hear about your accident! I hope everyone is okay. The correct replacement hose for your regulator is the MB Sturgis # 100473-12. This hose measures 12" long but various longer units are available, which I have linked below. The brass fitting/adapter you see on your existing hose is what is seen on some regulators, such as with the Camco # CAM59005. These are typically installed and kept on the regulator itself but sometimes are put on...
    view full answer...
    Image 1 for Image 2 for
  • Regulator And Connectors Needed For 30lb Refillable Propane Tank
    All you need here is a Type 1 connection like # 100473-12 and a single stage regulator like the MB Sturgis Single Stage Propane Regulator # 108072 for your 30lb refillable tank. This is a standard hose that connects to your tank goes to the single state regulator like what you have. If you need a hose to go from the regulator to your stove, send me a picture of the connection on the stove and I'll see if we have what you need. I would also need to know how long you need it to be. Included...
    view full answer...


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