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MB Sturgis Propane Tank Adapter - POL x 1/4" Male NPT

MB Sturgis Propane Tank Adapter - POL x 1/4" Male NPT

Item # 204037-MBS
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Propane Fittings
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MB Sturgis Propane Fittings - 204037-MBS
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This adapter lets you connect your RV's AMSE propane tank to a regulator or hose in your LP system. Gas can flow at up to 500,000 BTU per hour without interruption to fuel several appliances at once or 1 high-pressure appliance. Lowest Prices for the best propane fittings from MB Sturgis. MB Sturgis Propane Tank Adapter - POL x 1/4" Male NPT part number 204037-MBS can be ordered online at or call 1-800-496-5010 for expert service.
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  • Reviews (45)
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MB Sturgis Propane Fittings - 204037-MBS

  • Adapter Fittings
  • 1/4 Inch - Male NPT
  • POL - Male
  • MB Sturgis

This adapter lets you connect your RV's AMSE propane tank to a regulator or hose in your LP system. Gas can flow at up to 500,000 BTU per hour without interruption to fuel several appliances at once or 1 high-pressure appliance.


  • Full flow propane tank adapter lets you connect a regulator or hose to your RV's LP tank
    • Allows open gas flow at tank pressure to run many appliances at once
    • Also great for high-pressure appliances
  • No excess flow valve means it will not go into bypass mode to shut off your gas supply
  • POL fitting attaches to female threads on your propane tank
    • Swiveling threads let you hand tighten with ease
  • Male NPT end attaches to your regulator or supply hose
    • Propane thread tape (37207-30025 - sold separately) recommended for installation
  • Durable brass fittings approved for LP gas only
    • CGA 510 and UL certified
  • Made in the USA


  • Fitting size: POL tank connection x 1/4" male NPT
  • Temperature range: -40 F to 250 F
  • Maximum flow capacity: 500,000 Btu per hour

204037-MBS MB Sturgis Propane Tank Connector - Full Flow POL x 1/4" MNPT

Customer Reviews

MB Sturgis Propane Tank Adapter - POL x 1/4" Male NPT - 204037-MBS

Average Customer Rating:  4.9 out of 5 stars   (45 Customer Reviews)

This adapter lets you connect your RV's AMSE propane tank to a regulator or hose in your LP system. Gas can flow at up to 500,000 BTU per hour without interruption to fuel several appliances at once or 1 high-pressure appliance.


Worked perfectly, allows me to attach other propane fittings with ease. Quality made as well

No problems at all. Reasonable that ti will work for a long time
Doc R - 10/20/2021
No problems at all. Reasonable that ti will work for a long time
Doc R - 10/20/2021


Looks like everything it should be, all solid brass, fully machined, ready to go.

Herbert - 06/02/2022


When I install my new gas regulator this will be installed at that time. Looks like it is well made.


Fits perfectly


The original fitting on my 20 year old motorhome started leaking propane. Vibration from the road over the years had caused it to wear enough to prevent it from properly sealing. The "O" ring built into the replacement resolved the issue and returned the safe use of the propane system.

Still working great!
Glenn - 08/30/2019


Quick delivery. Good quality, Made in the USA product.


item was delivered very fast and was exactly as pictured! very happy with it and have already put it to work!


Item was on time and just what was needed. Great service and will use etrailer in the future. Thanks


Works as advertised.


High end part the only brand I will use.


Exactly what I ordered and arrived time ly


Completely accurate photo and description of the part. Works perfect


Work great to convert old propane tanks to air tanks.




I wish all web sites were this easy to use,simple and to the point. The product was just what I ordered and fit perfect.


Just gave 4 stars haven't used them yet but came in a timely manner. Ordered more through etrailer. Good prices too


Good quality product and made in the US A!!!


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!!


Excellent product at excellent price. Would definitely recommend etrailer to everyone I know.


good quality, will do the job


Same as stated on my other purchase

Michael B - 12/12/2020





Just what I needed. Worked perfect!


Thanks to your team I got the part installed in less than 10 mins, no leaks!

Show More Reviews

See what our Experts say about this MB Sturgis Propane Fittings

  • Can the O-Ring on a POL Propane Fitting be Replaced
    Are you looking for the O-ring that's on the end of POL fitting? If so, we don't carry just the O-ring but we do carry POL fittings, like part # 204037-MBS. If I'm misunderstanding what you're looking for let me know. Or reply with a picture of what you need.
    view full answer...
  • Troubleshooting a Propane Leak at Hose and Tank Connection
    We may have a solution for you but If the leak is on the tank side of the connection then we do not carry a part that will solve the issue. Since the tank is on a trailer it's likely that it uses a Type 1 fitting. You can try replacing the hose with a Type 1, like # 100575-30-MBS, and see if this fixes your leak. I've linked our selection of Type 1 hoses for you as well.
    view full answer...
  • What is the Pressure Output of Camco Automatic Changeover 2-Stage Propane Regulator # CAM59005
    The output of Camco Automatic Changeover 2-Stage Propane Regulator # CAM59005 is indeed an 11 inch water column. You can use it with your current tank system. You will likely also need a POL to 1/4" MPT adapter fitting # 204037-MBS to use the regulator with a 100 pound tank.
    view full answer...
  • 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...
    view full answer...
    Image 1 for Image 2 for
  • Available Propane Adapter Fittings and Adapter Hoses for Connecting RV Gas Supply
    Since there are many types of propane fittings and because it can be challenging to keep track of exactly which ones you have I suggest referring to the linked article that illustrates the most common propane connectors. In the event that we do not have a single item that will fill your requirements often a combination of parts will work just as well. The linked page for propane parts shows separate categories for adapter fittings such as # 204037-MBS and for adapter hoses like # 100476-120-MBS....
    view full answer...
  • Recommended Regulator For An Instant Water Heater And Dryer
    For your water heater and dryer I recommend using the Camco Horizontal 2-Stage Propane Regulator # CAM59333, which is a horizontal regulator with a POL fitting already included, or the MB Sturgis Vertical 2-Stage Propane Regulator # 108220, which is a vertical regulator. You'll want to match the current design of your propane system so that the vent is facing down. The # 108220 will require you to purchase a POL fitting # 204037-MBS separately to attach to your tanks. I'm assuming since...
    view full answer...
    Image 1 for
  • Propane T-Fitting & Hose For Between ASME Tank & Regulator
    The threaded brass plug connects the ASME tank on your motorhome, and the fitting on the right is for connection to the regulator for the MB Sturgis Sturgi-Flow T-Fitting w/ Hose - POL Valve - Disposable Cylinder Port # 103608. You will need an adapter to go from the T-fitting to your regulator, the MB Sturgis Propane Tank Adapter - POL x 1/4" Male NPT # 204037-MBS. For this fitting it is recommended you use Thread Sealant Tape # 37207-30025.
    view full answer...
    Image 1 for
  • Recommended Two-Stage Regulator For A 100lb Tank Fueling A 160,000BTU Tankless Water Heater
    For a horizontal two-stage regulator that's manufactured in the USA we offer the MB Sturgis Horizontal 2-Stage Propane Regulator - 11" Water Column Outlet # 108221. You would just need to attach the MB Sturgis Full Flow Propane Tank Connector Fitting - Soft Nose POL x 1/4" MPT # 204037-MBS to the 1/4" Female NPT inlet on the regulator to be able to connect to your 100lb tank. I recommend using some Thread Sealant Tape for Gas Lines # 37207-30025 to ensure a leakproof connection. This...
    view full answer...
  • Parts Needed to Hook Up to 100 lb Propane Tank on 2019 Grand Design Transcend RV
    From what you described it sounds like you're needing the T-Fitting # 103602-MBS along with the Fill Hose # 100019-144 (for your small tank), the Tank Connector # 204037-MBS, and the 2-Stage Propane Regulator # 108221. Attached is a photo of what this setup looks like and below is a full list of the parts you'll need if all you currently have is the 100 lb tank: T-Fitting - # 103602-MBS Fill Hose - # 100019-144 Adapter Hose - # 100284-144-MBS (for an appliance like the Grill # FR51322) Tank...
    view full answer...
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Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Mary E
Updated by:
Mary E
Employee Cody B
Updated by:
Cody B
Employee Amanda M
Written by:
Amanda M

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