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MB Sturgis Propane Hose - 3/8" Male NPT x 1/2" Female Flare Swivel - 4'

MB Sturgis Propane Hose - 3/8" Male NPT x 1/2" Female Flare Swivel - 4'

Item # 100383-48-MBS
Our Price: $29.93
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Propane Fittings
Shipping Weight: 0.75 lbs
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100383-48-MBS - 1/2 Inch - Female Flare MB Sturgis Hoses
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Propane hose lets you connect RV appliances to the main LP supply lines in your RV. Female flare fitting connects to flared fittings found on RV appliances or T-fittings. Male NPT threads connect to your regulator or other fittings. Great Prices for the best propane fittings from MB Sturgis. MB Sturgis Propane Hose - 3/8" Male NPT x 1/2" Female Flare Swivel - 4' part number 100383-48-MBS can be ordered online at or call 1-800-940-8924 for expert service.
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MB Sturgis Propane Fittings - 100383-48-MBS

  • Hoses
  • Supply Hoses
  • 4 Feet Long
  • 1/2 Inch - Female Flare
  • 3/8 Inch - Male NPT
  • MB Sturgis

Propane hose lets you connect RV appliances to the main LP supply lines in your RV. Female flare fitting connects to flared fittings found on RV appliances or T-fittings. Male NPT threads connect to your regulator or other fittings.


  • Hose supplies propane gas to appliances in your RV
    • Connects to fittings on your oven, water heater, refrigerator, or other appliance
  • Female flare end connects to male flare T-fittings or on your appliance
  • Male NPT connection hooks up with T-fitting, gas manifold or regulator
  • Swivel collars on female end lets you easily hook up line without the hose twisting or kinking
  • Durable thermoplastic hose and brass fittings are approved for LP and natural gas
    • UL569 / CSA 8.3-1 certified
  • Made in the USA


  • Temperature range: -40 F to 140 F
  • Hose dimensions: 48" long x 3/8" inner diameter
  • Hose fittings:
    • 3/8" Male NPT
    • 1/2" Female flare
  • Maximum pressure rating: 350 psi
  • 1-Year limited warranty

100383-48-MBS MB Sturgis Propane Hose Assembly - 1/2" Female Flare Swivel x 3/8" MNPT - 48"

Customer Satisfaction Score:

Customer Reviews

MB Sturgis Propane Hose - 3/8" Male NPT x 1/2" Female Flare Swivel - 4' - 100383-48-MBS

Average Customer Rating:  4.9 out of 5 stars   (119 Customer Reviews)

Propane hose lets you connect RV appliances to the main LP supply lines in your RV. Female flare fitting connects to flared fittings found on RV appliances or T-fittings. Male NPT threads connect to your regulator or other fittings.


Worked fantastic


Excellent as always.


I purchased this item to replace the original equipment hose connection on our trailer as part of a recall on the propane regulator. This is an exact fit piece and was very easy to install.


Just what I needed - quick shipping.


Great service Carol, checked this morning correct part! Will be ordered more stuff soon!


The product like others we have purchased in the past is excellent quality. Especially like that it was made in the US. We had an issue with shipping and Lori in customer service was especially helpful getting the issue resolved.


There was three parts ordered they were what I had ordered and they went together very easily and work. The order was on time.


Reasonable price, super speedy shipping and perfect fit. My only suggestion would be to show a ruler/ measurement on the product photo, confirming the diameter of the ends. The female end actually measures 3/4" inside diameter, which threw me off a bit when replacing my old hose. Had to run to Lowes with the hose to confirm my old hose was actually 1/2" female fitting.



The hose was an inch longer than the old ones. Was a bit of a trick to position the propane tanks so they attached cleanly and the bends in the hoses didnt rub on the cover while traveling. Otherwise, they have stayed in good shape and working as expected.


I love the web site. I could see a 360 view of the part and easily get all of its specifications. I was sure the ends were the right ones to fit my trailer. There was even a short video about the part. The price was very competitive and once I ordered the part, it was shipped right away. I chose the economy shipping and of course, the Post Office misdirected the package and it took 2 days longer than expected to arrive, but if I needed it faster, I could have chosen an express delivery for some additional cost.

I needed a replacement hose because rodents ate through my old hose. I wonder if this part is less palatable to rodents?

Etrailer Expert

Rachael H.


you might consider some of our wire loom # 39035. This is a 10 foot section of it, and it is 38 diameter so it should work for your propane hose, just cut to fit. Maybe if there is one more layer on there it may make it less appealing to the silly critters.


I needed a longer hose to complete my conversion from single to dual tanks on my camper. The hose appears to be of good quality.
The staff at etrailer is great! Very helpful and courteous.
Will continue checking here first for my needs.



No complaints. The hose integrity is still good. No cracks or leakage.


Product was as advertised. The only concern was the long delivery time, two weeks. That wasn't so horrible in and of itself, just that I buy a lot of items on line and most cases the delivery time is much shorter.

An interesting aside and no reflection on e trailer it turns out my ancient travel trailer (1969) had a different saw gas pipe where gas service enters he trailer, but the counter lady here in Tucson had the right adapter for 5 bucks. Which works out fine. I believe she said the trailer side is 1/2 inch pipe thread and the hose is 1/2 inch propane thread, but she had the adaptor so I'm a happy camper. Sorry for The t.m.i. Maybe next customer with ancient vintage trailer may benefit from my tale.


Product looks great, installed it today. Was pretty hard to find and you had!


I purchased this hose to connect a 5 kw Honda gen set to a 12" (low pressure) propane regulator. This is the ideal combination of components for this application.The slightly larger hose is needed (1/2' vs. 3/8") to act as a reservoir given the lower pressure fuel supply. 3/8"mpt is a standard for the regulators.

A well constructed hose, ideal for the application.


Went on with no issues. Good quality. I replace regulator while I was at it. Should be done every 10 years

Steven F.


After 1 year still doing its job. The hose that connects to the nipple does not swivel which make it a pain to put on. Other than that Im glad I got ir.


Fit the bill perfectly. Customer Service has been excellent!
Thanks Amy!


etrailer is great. They have great product descriptions and review videos so that I know exactly what I am buying and how it will fit my needs
I recently received a propane hose from etrailer that had been mis-packaged and therefore was the wrong length. They quickly sent out a replacement hose and now I have what I need.
Thanks a lot to Bryan and the crew at etrailer.


I actually purchased this hose for a vacuum/pressure rig for casting resin in a pressure vessel. This hose was the only one I could find that had the proper ends to work with both the vacuum pump and the vessel, and it works perfectly!


Just bought a used 5th wheel and hose was leaking and went to local rv repair shop and was out of hose. I ordered it and saved money and was delivered quickly and I would recommend them......


All a great company to deal with


It is nice to get the hose I needed with the exact fittings so I didn't have to source adapters, etc. Good quality and fast service. What is not to like?


John was very quick in answering my questions.He suggested the parts I needed and I bought them. Delivery was fast and everything worked as planned!!



I used this on my food trailer. Unfortunately it wasn’t big enough to handle everything. This was caused by a lack of research on my behalf


Great service and high quality merchandise. Those are the reasons I use etrailer for my parts.


I had to replace my previous hose because it was chewed through by squirrels, I replaced it with this hose and haven't had a problem. That's about all I can ask out of a gas hose.


This product has been worry free for a year now, no cracks,no leaks,no problems.

Ronald D.


No problems at all


This propane hose is serving me well. No leaks or other problems one year after purchase. The length was also correct and fit perfectly.

Show More Reviews

See what our Experts say about this MB Sturgis Propane Fittings

  • Extension Hose for Dual Propane Tanks After Regulator on RV
    We have a large selection of propane extension hoses which I have attached for you. In order to find the correct one we would need to know what type of fittings you need on either end. If you do not know what type of fittings you need then you will want to take a look at the attached help article which explains all of the different types. The back check valve you are referring to is usually built into the leader hose that connects the tank to the regulator so you do not need an additional...
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  • What Type of Fitting Matches my Propane Hose
    The fitting you have described matches the measurements I see on the 1/2" female flare like the one on the MB Sturgis Propane Hose Assembly - 1/2" Female Flare Swivel x 3/8" MPT - 4' part # 100383-48-MBS or the 3' part # 100383-36-MBS. Check out the video my buddy Ellen did on the hose it is linked for you.
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  • Propane Hose to Connect Trailer's Propane System to Regulator
    Thank you for the photo and from that it looks like you have a 1/2 inch fitting, which is common for the hose coming from the propane system on your trailer. However, there are not extensions with a 1/2 inch fitting so we have replacement hoses of different lengths though you'll need to determine if they are the proper length for your needs. - MB Sturgis Propane Hose Assembly - 1/2" Female Flare Swivel x 3/8" MPT - 3 Feet # 100383-36-MBS - MB Sturgis Propane Hose Assembly - 1/2" Female...
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  • Does the 1/2 Inch Female Flare Swivel x 3/8 Inch MPT Come in a 12 Inch Length?
    The MB Sturgis Propane Hose Assembly - 1/2" Female Flare Swivel x 3/8" MPT - 3' # 100383-36-MBS does not come in a 12 inch length. We only have the 3 foot already mentioned, 4 foot # 100383-48-MBS, and 5 foot # 100383-60-MBS. The only hoses in the 12 inch length are the pigtail hoses that connect the cylinder to the regulator.
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  • Is Teflon Tape Needed On Either End Of Sturgis Propane Hose # 100383-48-MBS
    When connecting hoses like the Sturgis Propane Hose # 100383-48-MBS, The 1/2 inch flare swivel fitting does not need any Teflon tape or sealant. Teflon tape or sealant can be used on pipe fittings like the 3/8 MPT on the opposite end
    view full answer...
  • What Is The Actual Inner Diameter Of The MB Stugis Hose # 100383-48-MBS
    The inner diameter of the MB Sturgis Propane Hose Assembly - 1/2" Female Flare Swivel x 3/8" MPT - 4 foot # 100383-48-MBS is 3/8 inch.
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  • What Size Fitting Is Needed on RV Propane Hose That Goes from Regulator to Trailer
    The MB Sturgis Propane Adapter Hose - 3/8" Male NPT x 1/2" Female Flare Swivel uses a 3/8" fitting on the regulator side and 1/2" fitting on the manifold side. These are nominal fitting sizes so they don't actually measure 3/8" and 1/2", they are actually larger at .675" and .840" respectively.
    view full answer...
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  • Do I Need Sealant For My Gas Pipe, If So, What Is Your Recommendation
    No, you will not need to apply tape/sealant to the flare end of your MB Sturgis Propane Hose Assembly - 1/2" Female Flare Swivel x 3/8" MPT - 4', part # 100383-48-MBS. I have included product description links and a video review link below.
    view full answer...
  • Is There A Difference Between MPT And NPT Propane Fittings
    MPT is a male connection with NPT threads (national pipe threads). They basically just drop the "National" portion of the name on these parts and replace them with the male or female designation. The MB Sturgis Propane Hose Assembly - 1/2" Female Flare Swivel x 3/8" MPT - 4' # 100383-48-MBS you were looking at has a male NPT fitting and would require a female NPT (FPT) fitting to connect to. You will want to make sure you don't mix up flare fittings with NPT fittings though as they do look...
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    Image 1 for
  • Replacement For Marshall Gas Flexible Hose Model A6 Part Number 42611-48
    Yep, I sure can; the Marshall Gas Flexible Hose Model A6 part 42611-48 is a high pressure 48 inch hose with 1/2" female flare and 3/8" MPT fittings. You can replace the hose with one from MB Sturgis: - MB Sturgis Propane Hose Assembly - 1/2" Female Flare Swivel x 3/8" MPT - 4' # 100383-48-MBS
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  • Is Propane Pressure Before Regulator High Pressure Propane
    The lines and ports that would mount before your propane regulator would be unregulated propane and not high pressure as high pressure propane is regulated just to a higher pressure. Low-pressure propane burners regulate gas intake to about 6 ounces per square inch, whereas high-pressure burners regulate gas intake to between 1 and 60 pounds per square inch. Pressure in a propane tank regardless of size can range between 100 and 200 psi typically.
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  • Recommended Propane Hose that Runs from Regulator to RV
    It sounds like you are just needing a hose assembly like the MB Sturgis Propane Hose # 100383-48-MBS. This 4 foot long hose is designed to connect a 2-stage regulator to the RV's propane system. It features a 3/8 inch Male NPT at one end that will connect to the regulator and then a 1/2 inch Female Flare Swivel that will connect to your RV. You will just want to verify the type of connection you need on the RV end. Another common connection is a 3/8 inch female flare swivel. If this is...
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  • Comparing High and Low Pressure Propane Hoses and Thermoplastic Versus Rubber
    Most RV propane systems use a low pressure regulator because the appliances are low pressure. You can check the information stamped into your regulator to determine if it is high or low pressure or offers both. High pressure regulators are usually 30 psi, such as # 108072. Hoses for high pressure systems are built to handle the higher pressure. Many hoses do not specify if they are high or low pressure and can generally be used for either system. The fittings on each type may have different...
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  • Parts Needed to Connect Manchester 10 lb Propane Tank to 4 Propane Cookers on Food Trailer
    From what I can tell it looks like you need the adapter # 204037-MBS, regulator # 108221, and hose # 100383-48-MBS for your propane setup. I'm not sure what the POL to QCC1 converter is that you mentioned but these parts get you from the POL connector on your Manchester 100 lb propane tank to the 1/2" flared fitting that I believe your picture shows goes to your 4 propane cookers. If you have something else please let me know. I have attached a photo showing how these parts are typically...
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  • Recommendation For 3/8 Inch Female Flare Swivel x 3/8 Inch MPT Propane Hose
    I believe we have exactly what you need. I recommend the MB Sturgis High Pressure Propane Hose, Item # 100040-72-MBS. This propane hose has a 3/8 inch male MPT on one end and 3/8 inch female flare swivel on the other. It is 6 foot long and has a maximum pressure rating of 350 psi. I have attached additional information and a video for you to check out.
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  • Regulator and Hose for a Pair of 110,000 BTU Deep Fryers on Food Truck
    What you will need is a 2-stage regulator, either the Vertical 2-Stage Propane Regulator # CAM59313 or the Horizontal 2-Stage Propane Regulator # CAM59323. For hoses you will need a 3/8" MPT to attach to the regulators and since you mentioned 1/2" the 3' Propane Hose Assembly # 100383-36-MBS comes with a 1/2" female flare swivel on the other end. Hose Assembly # 100383-48-MBS is the same thing but 1' longer. Should you need a 3/8" female flare swivel the correct hose assembly is # 100040-48-MBS. I've...
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  • Installing Battery Isolator 08771 in 2002 Ford Excursion
    The way I read this is that you have a crank battery in your tow vehicle, you have or want to install, an auxiliary (Group 31 deep cycle lead acid) battery that will also be in the tow vehicle with use of the battery isolator to charge this battery. However, in addition you want to connect a second similar (Group 31 deep cycle lead acid) battery installed on a trailer, to this same charge circuit. Yes, the drawing that you have attached shows a circuit that will work for charging the...
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  • Propane Regulator for a 100 lb. Propane Tank to Run Two 70,000 Btu Fryers
    For your 100 lb. propane tank you can use the Camco Horizontal 2-Stage Propane Regulator w/ P.O.L # CAM59333. This regulator is rated for 160,000 Btu/hr and has the P.O.L. fitting to hook directly up to your tank. You would then need a hose to run from the regulator to your supply line. Since you mentioned 1/2", a hose like the MB Sturgis Propane Adapter Hose # 100383-48-MBS has a 3/8" fitting to fit in the regulator and a 1/2" female flare swivel on the other end.
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  • Propane Hose Replacement For 18CE Cavagna Group Recommendation
    Searching by part number it appears the MB Sturgis Propane Hose Assembly # 100383-48-MBS would be the replacemement part you need for at least the 18CE Cavagna Group replacement. The picture received on our end was a duplicate and you mention there's a different connector for it so if there is a different label for the second connector I would be happy to check that one as well. Regarding braided vs. rubber line durability, the braided stainless steel can protects the thermoplastic...
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  • Solution for Needing 4-1/2 ft Long Propane 1/2 inch Diameter Feed Hose
    We have a 4 foot section of 1/2 inch propane hose with part # 100383-48-MBS and we also have a 5 foot section with part # 37207-31475 but we do not have a 4-1/2 foot long section.
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  • Hose For Camco Horizontal 2-Stage Propane Regulator w/ P.O.L CAM59333
    The hose is going to depend on what you are using the Camco Horizontal 2-Stage Propane Regulator w/ P.O.L - 160,000 Btu/Hr # CAM59333 with. It has a POL fitting for the tank, and for the hose, one end will be 3/8" Male NPT to connect to the regulator, and the other end will depend on the fitting you need for your appliance. For example if you needed a 1/2 Inch - Female Flare fitting you could use the MB Sturgis Propane Adapter Hose - 3/8" Male NPT x 1/2" Female Flare Swivel - 4' # 100383-48-MBS. I...
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  • Replacement Propane Supply Hose From Regulator to RV Propane Supply Line
    It sounds like you're looking for a 3 foot long supply hose; typically the outlet end of a regulator will almost certainly be a 3/8" female NPT and from the picture you sent it looks like you've got a female flare connector on the other end that goes to the metal RV piping. Additionally, since you've said that the piping side is larger it sounds like you're looking for the # 37207-31445 which has a 1/2" Female flare connector on one end and a 3/8" male NPT on the other.
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    Image 1 for
  • How to Correctly Measure a Propane Hose
    In order to correctly measure a propane hose you will need to measure end to end (fitting to fitting). The propane hoses we sell are by the foot so this may make it easier to determine what you need. It is also a good idea to get a hose that is a bit longer than what you need to account for any errors during measuring. For example, the MB Sturgis Propane Hose Assembly part # 100383-48-MBS is 4' long end to end. I have attached a list of our propane selection for you as well.
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  • Replacement Propane Trunk Hose from Regulator to Trailer
    It's hard to tell from the pictures what size fittings are being used but what you need is a trunk hose from your regulator to the trailer. Once you know the size of each fitting it shouldn't be difficult to find a hose. It looks to me likes it's probably a 3/8 inch for both of them which means you can use part # 100040-48-MBS for a 4 foot, part # 100040-72-MBS for a 6 foot, or part # 100040-144-MBS for a 12 foot. If it turns out the female end (regulator side) is 1/2 inch and the male...
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