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

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

Item # 100575-12-MBS
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MB Sturgis Propane Pigtail w/ Back Check - Type 1 x 1/4" Male Inverted Flare - 1' Pigtail Hoses 100575-12-MBS
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Pigtail makes the connection from the propane tanks on your trailer to the propane regulator on your trailer. Check valve prevents hazardous backflow leakage and is suitable for dual-tank setups. Lowest Prices for the best propane fittings from MB Sturgis. MB Sturgis Propane Pigtail w/ Back Check - Type 1 x 1/4" Male Inverted Flare - 1' part number 100575-12-MBS can be ordered online at or call 1-636-306-4830 for expert service.
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MB Sturgis Propane Fittings - 100575-12-MBS

  • Hoses
  • Pigtail Hoses
  • 1 Foot
  • 1/4 Inch - MIF
  • Type 1 - Female
  • MB Sturgis

Pigtail makes the connection from the propane tanks on your trailer to the propane regulator on your trailer. Check valve prevents hazardous backflow leakage and is suitable for dual-tank setups.


  • Propane pigtail connects your propane cylinder to a regulator
    • Used for single or dual tank setups on the front of your travel trailer
  • Female Type 1 fitting connects to the valve on your propane cylinder
  • Male Inverted flare 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: 12" long x 1/4" inner diameter
  • Hose fittings:
    • Type 1 tank connection
    • 1/4" Male inverted flare
  • Maximum pressure rating: 350 psi
  • Maximum flow capacity: 450,000 Btu per hour

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.

100575-12-MBS MB Sturgis Propane Pigtail Hose Assembly - RV ACME Type 1 with Back Check x 1/4" Male Inverted Flare - 12" Long

Customer Reviews

MB Sturgis Propane Pigtail w/ Back Check - Type 1 x 1/4" Male Inverted Flare - 1' - 100575-12-MBS

Average Customer Rating:  4.8 out of 5 stars   (83 Customer Reviews)

Pigtail makes the connection from the propane tanks on your trailer to the propane regulator on your trailer. Check valve prevents hazardous backflow leakage and is suitable for dual-tank setups.


Perfect replacement/upgrade to the OEM gas connections on my Dutchman Camper. The South Alabama heat is brutal on exposed gas lines - one even blew out. At this price, I went ahead and replaced both. Fast shipping. Will definitely buy from again.

After a year in the Alabama sun, still no leaks.
Eugene - 07/08/2022


These hoses replaced some 15 year old hoses that had become very hard and stiff. Very flexible and good quality fittings. 12" length fit camper twin tanks perfectly. Hoses had been backordered for about 2 months but etrailer customer support kept me updated frequently on order status. Very pleased with order.


Worked fine adapting a 25 lb propane bottle to my space heater!


I installed two pigtails and a new regulator in less than 15 minutes. Everything went smoothly and tested well. I appreciate the expert advice. These have the BTU throughput I need.


Quality product, easy to install. Fits regulators with 1/4 inverted flare female fitting(s) only


Quick service, great price and fit perfect :)


Seems a good product. Alas after I purchased it a year ago, i never installed it!. Still have it :)

Working fine, still pliable and leak free and defect free
Lakshan S - 06/30/2022


I was able to find the pig tails for my propane tanks that I needed. Everyone else only had the pig tails with small office on the tank side. Right part good price.


Easy do-it-yourself fix with simple hand tools. My OE hoses were only two years old, cracking and one was leaking. These are made in USA.


Looks great made in the USA, arrived fast, I am waiting for the propane regulator to come in before I can install pigtails. Our travel trailer is under the massive propane regulator recall. The videos at etrailer takes the guesswork out when ordering


great product and fast delivery!


Good hoses so far. I ordered two of these and IF to PT adapters with check valves to screw into the regulator for improved safety.


Both propane hoses on my 2 year old trailer were cracked and leaking.

Ordered 2 new Hoses from etrailer. They arrived quickly. The hoses were heavy duty, and easy to install.

They have been on the trailer for a year and still look brand new.


I bought 2 of these and both are leaking. Tested them with soapy water after 11 months of use.


These M. B. Sturgis (Sturgisafe) brand LPG hoses appear to be extremely well made - much better than original equipment supplied with my RV. Hose material is very flexible, fittings are of high quality and carefully attached. Installed in minutes with NO Leaks - AND they are made in USA. This is my 7th transaction with etrailer and like on all previous purchases I found the website well designed with a quality product selection. The purchase procedure was fast and efficient and the product arrived well packaged, in good condition and in a reasonable time frame. I am totally satisfied with both product and seller.

M.B. Sturgis LPG hoses are performing as designed. No cracks, leaks or abrasions. Excellent product, highly recommended.
Jack S - 11/30/2018


Flexable and no leakage.


1 year later, still working great.


Just installed-the pigtails appear to be well made.I like that they are made in the USA.


Was a perfect replacement for the ones on my camper. No issues so far and look well made.


I bought 2 of these hoses and one of them just seems to "seep" gas. Even if you tighten it as much as humanly possible, you can still smell gas. If you don't tighten it to absolute max, you can actually move the hose a bit and you will hear the gas seeping out at a higher rate. The other one seems totally fine so it seems there may be some inconsistency in the product itself. I appreciate the 1 year follow up from eTrailer though.....


Great quality and great price. I replaced my existing pigtails with these and they work just fine. One of the existing pigtails was leaking and neither of them had the MB Sturgis connector.


I had a leaking gas hose on my camper so I replaced both pig tails with these from etrailer. They fit perfect. I was not sure about the inverted male flare end but it was correct, connected directly to the regulator/switchover valve fitting. Delivery was fast - two days.


MG Sturgis parts are made in the USA and are good quality. Years of direct sun had destroyed my old pigtails, and these are just the ticket for replacements. Well built and inexpensive. A no brainer.


Good quality part


Ordered this to replace a leaky one. Arrived on time and worked perfectly.

Show More Reviews

See what our Experts say about this MB Sturgis Propane Fittings

  • Replacement Propane Pigtail Recommendation for 2018 176 R-Pod Camper
    Thanks for all the pictures! From that I can tell that the pigtail part # 100575-12-MBS that you referenced is the correct replacement!
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • Will MB Sturgis Propane Hose # 100575-12-MBS Fit a Cavagna 924N Regulator
    I did a little research and I have some good news. MB Sturgis Propane hose # 100575-12-MBS has a 1/4" male inverted flare fitting. Your Cavagna regulator would need to have the mating female fitting for the hose to thread into. It looks like the Cavagna 924N has a 1/4 inch female NPT or inverted flare input which would make it compatible with the hose.
    view full answer...
  • Does MB Sturgis Propane Pigtail Work With Flame King 2-Stage Regulator
    It looks like the Flame King regulator you mentioned has a 1/4" female inverted flare inlet, so yes, it is going to be compatible with the MB Sturgis hose you asked about which has a 1/4" male fitting, MB Sturgis Propane Pigtail - Type 1 x 1/4" Male Inverted Flare # 100575-12-MBS.
    view full answer...
  • Hoses That Fit JR Products Automatic Changeover Regulator 37207-30395
    You will need hoses with a 1/4" male inverted flare to connect to the JR Products Automatic Changeover RV LP Gas Regulator # 37207-30395. I was unable to find the hose size that connected to the Winntec you have, but if they don't fit, then they wouldn't be 1/4" male inverted flare, as that's the correct size for the # 37207-30395. So you will need new hoses, and can choose the length you need from the following, each of which has the correct fitting to connect to your regulator: - 1...
    view full answer...
  • Comparing the Flexibility of the Stainless Steel Overbraid with a Regular MB Sturgis Propane Pigtail
    Since there are no ways to really measure the flexibility of a hose, the best way I can think of is to show them to you for a comparison. If you check out the review videos that I linked for the MB Sturgis Propane Pigtail - Stainless Overbraid # 100833-12 and the MB Sturgis Propane Pigtail # 100575-12-MBS you can see that our video team member has no problem bending the stainless steel version and he is able to easily move them similarly in each video. The stainless steel overbraid is...
    view full answer...
  • What are the Correct Hoses for the MB Sturgis High Capacity Auto Changeover Regulator 108260
    There are three ports on the MB Sturgis High Capacity Auto Changeover Regulator 108260. The two 1/4" female inverted flare inlets will attach to the propane tanks with a hose like the MB Sturgis Propane Pigtail part # 100575-12-MBS and the single 3/8" FNPT outlet will attach to the propane manifold on the trailer with a hose like the MB Sturgis High Pressure Propane Hose part # 100040-144-MBS. I have attached a review video of both propane hoses for you. I was not able to reference the...
    view full answer...
    Image 1 for
  • Selecting Pigtail Hose for Maximum Flow Capacity
    I agree that you would be fine with either the MB Sturgis, # 100473-15-MBS or the, # 100575-12 based on your stated usage. I suggest selecting the maximum flow capacity of the # 100575-12-MBS.
    view full answer...
  • Do I Need To Put Plumbers Tape On A Propane Pigtail With Inverted Flare?
    You will not have to put any type of sealant on the Sturgis Propane Pigtail # 100575-12-MBS becuase the fitting type is an inverted flare. If you are wanting to take the precaution just to prevent the waist of your gas and/or wanting to prevent the gas from entering into an unwanted space, you need Thread Sealant Tape for Gas Lines Item # 37207-30025. This will seal up any leaks if there is any. I've included videos if you would like to get more info on these products. Whenever you use...
    view full answer...
  • Replacement Propane Pigtails for Lance Camper Regulator
    The MB Sturgis Propane Pigtail - Type 1 x 1/4" Male Inverted Flare - 1' # 100575-12-MBS is the standard pigtail for your Lance Camper. It will connect to your propane tank and then to your regulator. I recommend the Camco Automatic Changeover 2-Stage Propane Regulator for Dual Propane Tanks # CAM59005 to connect your two pigtails. This features a gauge indicator to warn you that the tank pressure is decreasing and you will need to refill your propane tanks so you don't run out. These...
    view full answer...
    Image 1 for
  • What Propane Hose is Compatible With a Compact Low Pressure 2-Stage Regulator w/ 1/4" FIF inlet
    The MB Sturgis Propane Pigtail - Type 1 x 1/4" Male Inverted Flare # 100575-12-MBS will fit the Compact Low Pressure 2-Stage Automatic Changeover RV LP Gas Regulator # 37207-31525.
    view full answer...
  • Availability of 15 inch Long Propane Tank Pig Tails
    I understand what you are saying and I think you are on the right track. A bit more length from the pig tail would allow the rubber line to be able to loop so that it could tuck down better. We have 15 inch pig tails like part # 100473-15-MBS or even 2 foot long sections like part # 100473-24-MBS.
    view full answer...
    Image 1 for
  • Troubleshooting Propane Regulator That Only Works on One Side
    Start off by checking your pigtail. If you change your switch so that it is turned towards the side that isn't working and then swap your pigtails as well this will tell you if you need to simply replace a pigtail or if your have a bad regulator. If you find that it works when you swap the pigtail as well then you just need to replace your pigtail. If your regulator has the gold fittings on it where the pigtail attaches then you need part # 100575-12-MBS. Otherwise you would need part...
    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
  • Propane Regulator Compatible with Tankless Water Heater 157,000 BTU
    You can use a propane tank for the BTUs needed and simply use the appropriate fittings and regulator. For the regulator, I recommend the Camco Horizontal 2-Stage Propane Regulator w/ P.O.L - 160,000 Btu/Hr # CAM59333 you referenced which has an 11 inch water column. If you don't have the POL fitting, then I recommend the Camco Vertical 2-Stage Propane Regulator - 160,000 Btu/Hr # CAM59313 or the horizontal 2-Stage # CAM59323 which can use the MB Sturgis Propane Pigtail - Type 1 x 1/4"...
    view full answer...

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Info for this part was:

Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Cole B
Installed by:
Cole B
Employee Mary E
Updated by:
Mary E
Employee Wilson B
Updated by:
Wilson B
Employee Cody B
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Employee Amanda M
Written by:
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