What is the outside diamer of the bottom (exit) of the funnel? I need a snug, stable fit in my generator gas tank...

The bottom of the funnel is tapered 2.5 inches long. The very bottom is 1" OD and the top is 1.25" OD. I do not recommend a snug fit in the filler unless you have a air release vent on the tank you are filling. If air can't exit the tank as fast as you fill it the funnel will run very slow and possibly overflow. A trick I use sometimes is to first place a long neck funnel in the tank that is snug and then run the gas through the Mr Funnel into the long neck one. Just be sure to monitor the tank for fullness carefully so you don't overflow it. Another thing to try is to just transfer the gas between two portable tanks using the Mr Funnel to filter fuel away from the generator first.

Can this filter be used just for refueling chainsaws, or will the two cycle oil mix clog it eventually?

Yes. I mainly use it for 2 cycle fuels.

How do you clean the filter?

If heavy debris, simply dump it. If debris sticks, rinse with water and shake loose. We do not recommend compressed air as that risk damaging the microfine filter and its Teflon coating.

Will this separate water from ethanol?

Dear Phoenix, Thank you for your inquiry. The Mr. Funnel products will not filter ethanol. If you have any other questions, please feel free to call our Tech Support Team at 1-800-835-0129 Monday-Friday, 8am-5pm Central Time. Thank you. Have a wonderful day!

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Description

⛽ Keep your engine running flawless—because every drop counts!

COMPACT PORTABLE - Lightweight 91g design fits easily in any toolkit or workspace
UNIVERSAL COMPATIBILITY - Works seamlessly with Gasoline, Diesel, Heating Oil, and Kerosene
SELF CLEANING SIMPLICITY - Minimal maintenance with a smart, self-cleaning filter funnel
ENGINEERED FOR RELIABILITY - Durable industrial-grade polypropylene ensures long-lasting protection
PURE FUEL PEAK PERFORMANCE - Eliminate water, dirt, and debris to extend engine life

The AF1CB Fuel Filter by Mr. Funnel is a compact, lightweight funnel designed to remove water, dirt, and debris from various fuels including gasoline, diesel, heating oil, and kerosene. Made from industrial-grade conductive polypropylene, it protects engines from contamination-related failures across a wide range of equipment such as lawnmowers, generators, and ATVs. Its self-cleaning, portable design ensures hassle-free maintenance and reliable fuel purity.

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Manufacturer	Mr. Funnel
Brand	Mr. Funnel
Model	Mr. Funnel AF1CB
Product Dimensions	9.4 x 9.14 x 14.48 cm; 91 g
Item model number	AF1CB
Exterior	Painted
Manufacturer Part Number	F1C
Item Weight	91 g

AF1CB Fuel Filter

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Description

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Common Questions