AF15CB Fuel Filter

Purchased the large one, with 2 filters in the funnel. Had a boat with 45 gallons of gas that was contaminated with water that I pumped dry. Ran it all through this and put it into a couple of other vehicles, no issues whatsoever. It is a flat bottomed funnel so it does leave a bit of extra down in the bottom, could have been designed a bit better. Can minimize this by tilting the last bit to get all you can through one of the filters then disposing of what remained - not all that much. Filters very quickly, I was pouring out of one 5 gallon jug into another, then into a vehicle. Filtered as fast as I was pouring. Tested by putting water in the funnel. Absolutely none ran through. I've no doubt it would filter any and all particulate too. Worked very well for what I needed. I'll take it to the farm to filter diesel there.

I had some snowmobiles with water in the gas tanks. I siphoned all the gas out and through the Mr. Funnel 15C, and like some magic trick, all the water stayed in the funnel and the gas went on through. Saved about the cost of the funnel in the gas that I saved. It is a great product and works like a champ. Dirt and debris were filtered out also. Would recommend this product for anywhere you need to clean fuel up that was contaminated with water or particles. It does go through a bit slower than stated but does work very well.

I bought this to speed up getting gasoline into a 55 gallon drum from gas cans. I had borrowed a similar funnel before from a friend that fit perfectly, and had chamfered slots on the O.D. of the tip to allow air to escape the barrel without blowback. This one doesn't fit at all - not even close. I managed to find a small hose in my stash to jam inside the tip, and fit into the bung, but that made an airtight seal. Ended up spilling at least a gallon out of 35 gallons due to the blowback of escaping air that will take fuel with it. So, if you need one for this purpose, look elsewhere. If you've got a container that can breathe, this is definitely the fastest way to get it all filtered.

I purchased the filter to eliminate any water or foreign debris from contaminating the fuel system in my boat tanks. It seems to to a good job in the filter department, and is reasonable in the time it takes for the fuel to get through the 10 micon filters. I purchased the 2 head model for this purpose. The real story came when I filled the funnel up with water, to see if any water would pass through. Water passed through at the rate of 3 large drips in 15 seconds. Sent a email to customer service, and they informated me the instructions stated to only fill the funnel 1/3 up the filter head to check for water passage. I did, and NO water came through. The great part is, they got back to me in 15 minutes, unlike some companies that will wait 15 days to answer you question.

Will certainly filter out contaminants but in now way does it allow 12GPM of fuel through. Also leaves about a pint of fuel that will not go through (height of filter to bottom of the bowl of the filter base). Zero customer service. Email, phone call, no response. If I ever have to replace it, I’ll use an off brand for half the price.

I wasn't sure if this was real or a gimmick. I had several 5 gal gas cans in the garage that had lots of condensation in them. They wouldn't run anything prior to filtering. I ran the gas thru Mr. Filter and it removed all the water, dirt, particles, and debris leaving pure gas. I was really shocked. My lawnmower ran with no issues after filtering the gas. So I then added the gas to my cars without any issue. No hesitation or sputtering. The gas was treated with stabilizer prior to being stored.

When I tested just using water, it seems to stop the water fine. But when the water is mixed with gas (the entire point of the device) it goes right through. Have tested several times with watery gas and there is always a lot of water after running throug4h the funnel. See attached after using Mr Funnel. Complete waste of money

Works good ....some fuel left over in bottom..... probably just a funnel with HD screen be just as good