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Part# 05-01055


Mr. FunnelŪ Fuel Filters are simply amazing. Dirty fuel in.... pure fuel out. It's that easy.

The specially designed filter removes water and dirt from gas, even 2-stroke mixtures. Ethanol attracts water more than regular gasoline. Never before has a fuel filter been more important.

Dirt and water are practically unavoidable in stored fuel, causing microbial growth, corrosive acids, electrolysis and rust. These contaminants can plug filters, corrode components, decrease efficient combustion and cause engine shutdown or system failure.

When fuel is poured through the Fuel Filter Funnel, water and debris will not pass through the filter's fluoropolymer-coated stainless steel filter. Only filtered fuel flows through to your engine, improving its efficiency, durability, and proper operation. The sump area collects the deflected water and debris for proper disposal. The Fuel Filter Funnel will filter gasoline, diesel, heating oil, kerosene and 2-cycle mixed gas.

The Fuel Filter Funnel is a heavy-duty, anti-static, and fast flow funnel with built-in filter technology.

Lawn mowers, tractors weed trimmer/blowers, dirt bikes/ATVs, boats, even airplanes... will have longer useful lives if owners filter their fuel!

California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -

Specs Chart:

HeightDia.Flow RatePN
F1C Small Fuel Filter Funnel 6" 3.5" 2.7 gpm 05-00026
F3C Medium Fuel Filter Funnel
8.75" 5.5" 3.9 gpm 05-01054
F8C Large Fuel Filter Funnel 10" 8.5" 5.0 gpm 05-01055


Those funnels work great for me. I have to wonder if the fella complaining ever sumps his aircraft tanks, or understands the principal of water sinking below fuel.

December 11, 2021

That is all I ever use

Maurice S Verified Purchase


July 8, 2021

I have used these funnels for quite some time, filtering diesel on the boat and another filtering Avgas for the airplane. For those who complain about fuel being left in the bottom of the funnel after use. That is how it is designed for trapping water. If there is any water in your fuel, that is where it is trapped. Always interesting to pour the residual into a fuel tester and see all the water being collected.

Paul R
July 3, 2021

Works just as advertised. It takes fuel as fast as I can pour it from a fueling can.

Edward P
June 26, 2020

filters great, several ounces of fuel left in bottom of funnel that can

Alan C
April 27, 2017

filter works great but does not fully drain contents. Lack of drain funnel on top makes a messy job of returning un-used fuel to your jerry can.

Robert A
May 11, 2016

Terrible funnel for several reasons, I discarded it after a single use. 1. The funnel doesnt completely empty - a couple hundred ml remain in the bottom of the funnel, and need to be dealt with after fueling - either thrown away or back into a gas can with another funnel. 2. The flat bottom (unlike a regular tapered funnel) causes gas to splash out all over the wing and yourself while fueling. 3. The flow rate on the large funnel isnt enough to keep up with pouring from a gas can - I had to stop and wait for the funnel to drain several times with each can I poured in.

Daniel L
March 29, 2019


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: How do you clean the filter or do you have to replace it?

Per supplier: These can be cleaned but there is no special way to clean them. We don't use any chemicals though, just some water.

Q: What size (microns) is the medium filter?

The medium is 50 microns. Part # 05-01054

Q: Will this product separate the water from 100LL fuel?

This will filter water from fuel. It is not specific to any type of fuel.

Q: Can you filter E98 (ethanol fuel) with this?

Yes this will work with ethanol.

Q: Is this product the one that is made in the USA or is it the Chinese one?

This is made in the USA.

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