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

⛽️ Filter smarter, drive cleaner, and never get left behind!

FAST FLOW NO FUSS - Filters up to 2.5 gallons per minute for uninterrupted fuel delivery.
COMPACT LIGHTWEIGHT - Sleek 9.1 x 14.5 cm design weighing just 91g fits seamlessly in any setup.
PLUG PLAY SIMPLICITY - No assembly required—install and fuel up with zero downtime.
PURE FUEL PEAK PERFORMANCE - Effectively removes water, dirt, and debris to protect your engine.
DURABLE AMERICAN CRAFTSMANSHIP - Made in the USA with high-quality plastic for reliable, long-lasting use.

The Mr. Funnel AF1CB Fuel Filter is a compact, lightweight filtration solution designed to remove water, dirt, and debris from fuel at a rate of 2.5 gallons per minute. Made in the USA with durable plastic, it ensures cleaner fuel delivery and optimal engine performance without any assembly required.

Reviews

M**H

Paddu

Very use full

26.01.2020

D**N

It was good..

The product was good and it was received at the estimated date ...the price of the product was good as compare to the product...

12.05.2022

I**D

no match

It does what it says

8.01.2018

S**R

Not good

It didn't filter out the impurities as intended

30.07.2019

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TrustScore 4.5 | 7,300+ reviews

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The product quality is outstanding. Exactly what I needed for my work.

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Material	Plastic
Brand	Mr. Funnel
Colour	No Color
Capacity	2.5 Gallons per Minute
Product Dimensions	9.1W x 14.5H Centimeters
UPC	079976681445 074748350253
Manufacturer	Mr. Funnel
Model	AF1CB
Item model number	AF1CB
Exterior	Painted
Manufacturer Part Number	F1C
Stain Resistant?	No
Assembly Required	No
Country of Origin	USA
Item Weight	91 g

Mr. Funnel AF1CB Fuel Filter

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