MSR  IsoPro Fuel Canister - 3.9 oz. / 110 g

$5.95

With an 80/20 blend of isobutane and propane, the MSR IsoPro Fuel Canister in the 3.9 oz. size is perfect for fast and light adventures, day use or overnight trips.

Size: 4 OZ
Quantity

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Features

  • Canister is designed for use with all MSR canisters stoves and will work with many other brand canister stoves
  • 80/20 blend of isobutane and propane is clean burning, delivering superior performance throughout the life of the canister and in colder temperatures
  • Printed float gauge allows you to place your canister in water to determine how much fuel is left
  • Self-sealing valve allows the canister to be removed from the stove burner for transportation
  • Canisters can be recycled under specific conditions; consult your local recycling center for regulations

Imported.

This is a flammable item and cannot be shipped. You can buy it online and pick it up at your local REI.
View the MSR IsoPro Product LineView all MSR Fuel Canisters

Technical Specs

Best Use

Backpacking

Dimensions

3.5 x 2.7 inches

Weight

7.4 ounces

Reviews
168 reviews with an average rating of 4.8 out of 5 stars

Ratings Snapshot

Product Rating

41 out of 41 (100%) reviewers recommend this product

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Average Customer Ratings

Ease of Use

Difficult to useVery easy to use

Customer Images

HikeNcamp
Rated 5.0 out of 5 stars

Dependable Fuel

1 year ago

I’ve never had an issue with this fuel. Have used in temps ranging from the mid 30s to high 60s. Most recently used it with my Soto Amicus (non-igniter version), camping in the Humboldt Redwoods. Thursday: Boiled 2 cups Friday: Boiled 5 cups Saturday: Boiled: 4 cups Sunday: Boiled 2 cups ***Canister still felt like there was a lot left It was quite windy, so I used it with my Optimus windshield.

Yes , I recommend this product

Ease of Use

Difficult to useVery easy to use
Helpful?
goinyard42
Denver, CO
Rated 5.0 out of 5 stars

Awesome fuel that lasts and burns hot

6 years ago

Love using this fuel with my Pocket Rocket stove. The ability to buy different sizes of fuel canisters is very convenient and can be adjusted depending on how long of a trip and how many meals you'll be making. Bonus feature about these canisters is you can measure how much fuel remains in the canister by simply placing in still water, tipping to release any air bubbles underneath it, and then letting it float. Read the water level on the canister and that is an accurate enough estimate of how much fuel remains.

Yes , I recommend this product
Helpful?
Juan Sarmiento
Sacramento, CA
Rated 5.0 out of 5 stars

Great for space and weight saving

3 years ago

It's a great size for packing our fuel canisters and stove into our cook set pots to save space. My wife and I take these on longer day hikes or short 1-2 day backpacking trips. For our usage, they able to boil water for drinking and re-hydrating meals roughly 20 times.

Helpful?
BeckySan
Sacramento, CA
Rated 4.0 out of 5 stars

Ran out faster than expected.

3 years ago

I have an Optimus crux lite stove and took a partially full Jet boil Jetpower canister and a MSR 3.9oz isopro as a backup on a 2night backpacking trip for 2 people. We were at 7500' and using the MSR in temps in high 20's to 40's. It was not windy. We calculate that the 3.9 oz MSR boiled only 5 liters of water and warmed 2 tortillas before running out. Luckily it was our last planned meal and the 2nd tortilla was mostly warm. Is that normal? It seems less than expected. It seems that the calculations are 1.6 to 1.8L per oz, but that should have resulted in 6.2 to 7.0 Liters. I'm sure altitude affects it but then the water boils at lower temps so...?? It may be just what is normal in those conditions and I should plan accordingly on future trips. * of note one of our food packets noted that cook time should be doubled for every 5000' above 5000', so we 1.5x our times with excellent cooked food results. It was very reliable, burned well and heated quickly in mid 20's temperatures I would use again, I would just plan on more.

Age:65–74
Yes , I recommend this product

Ease of Use

Difficult to useVery easy to use
Helpful?
TodR
Sacramento
Rated 5.0 out of 5 stars

Very good fuel

5 years ago

MSR was the first company to have the diagram about floating the canister in water to determine the fuel level. BRAVO MSR. This fuel also seems to be more consistent than the other brands. Hot weather, windy, super cold, this stuff always works.

Helpful?
Anonymous
Rated 5.0 out of 5 stars

Long lasting

9 years ago

My husband and I bought both the 4 ounce and 8 ounce fuel cannisters to go with our new MSR Micro Rocket for backpacking. We used the 4 ounce first, thinking that it would not last through many meals, however it allowed us to heat up our water for freeze-dried meals 8 separate times and still has some left! The last 2 times were in 19 degree snowy mountains, and the cold still did not affect our isopro's ability to boil water efficiently. One of the biggest perks is that the 4 ounce cannister fits nicely inside of GSI Pinnacle Dualist pot and pan set so it does not take up extra space in my pack. I would absolutely recommend this product.

Originally posted on a Cascade Designs brand site
Bill B
Rated 5.0 out of 5 stars

Good little gas cylinder

11 months ago

When I connected it to my stove it went whoosh, and then I opened the valve, lit it and it roared until the water in the pot boiled. Since I was flying home after the hike we donated what was left to some other Wonderland hikers. Their tale is not known

Age:55–64
Yes , I recommend this product

Ease of Use

Difficult to useVery easy to use
Helpful?
Evan777
St. Louis, MO
Rated 5.0 out of 5 stars

Functional for my needs cooking at campsites

1 year ago

Works as expected and fits in a 750ml Toaks cup perfectly. I haven't used it in any extreme scenarios, just basic backpacking and cooking at campsites. I expect in the future I will buy the cheaper options when its not going to be extremely cold out.

Age:25–34
Yes , I recommend this product

Ease of Use

Difficult to useVery easy to use
Helpful?
Okiebruin
Edmond OK
Rated 5.0 out of 5 stars

Great fuel

2 years ago

Fits in my cup w my msr rocket. Can boil approx 20 or more cups for meals.

Age:55–64
Yes , I recommend this product

Ease of Use

Difficult to useVery easy to use
Helpful?
Michael E
Columbus, OH
Rated 5.0 out of 5 stars

Lightweight and consistent fuel source!

4 years ago

Can get several trips out of one canister and super lightweight to use on backpacking trips. Quickly heats up my 300-500ml for food or coffee on the go. It tucks nicely in my 550ml Toaks cup with lid on.

Age:35–44
Yes , I recommend this product

Ease of Use

Difficult to useVery easy to use
Helpful?
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