Uni Filter - BF-1 BF1 12" X 16" X 5/8" 65-PPI Green Fine Foam

good OEM style foam to rebuild steel cage filters with!

Works good to make air filter for my motorcycle and lawn mower

made some excellent filters with this. wish all OEM filters were made of this stuff. The filtration of the fine product is excellent and it will save your engine in dusty conditions. It prevents the entry of sand and dust into your engine so it doesn't grind your piston rings into powder, and can lengthen your engine life to easily 300K miles if you use it along with Mobil One Synthetic Oils. You can wash and reuse it several times. Do that every 20K miles or less. you can make different shapes and glue it together to make round air cleaner filter covers. once you put it on over your round style filter, the paper never gets dirty. on flat style filters you just tale out the filter, cut a piece to fit under the paper filter with a pair of scissors, and put the paper filter back in on top of it and away you go. Some filters don't have enough room for the foam to fit under or around without blocking the air passageways pretty badly, and this will cause a check engine light when the oxygen sensor causes the fuel map to go out of range. In this case you might need to make an external housing or mount it in a different way. BUT it is still a great product!

Amazing quality. Will be purchasing again.

Purchased this to make an air filter for our 2012 Polaris RZR 800. We made the massive mistake of using a popular after market filter on the machine because it was a washable, reusable foam filter. It let through the fine dust of Utah and cost us a top end job after 1500 miles. The fine print on the other filter says the warranty isn't valid in dusty, off-road conditions. My husband used Uni Filters for years while riding trials motorcycle competitions and so we tried it for the RZR. This works far better than the aforementioned foam filter or the stock paper filter.

I use it as a pre filter for my 2023 CRF 300 rally. Able to get 6 filters out of this one size. Definitely recommend to anyone with a motorbike.

Recently, due to a major fire resulting in a 3-day power outage, I had to pull out my Kawasaki 3200w generator to keep the refrigerator and freezer in operation. Unfortunately, the foam air filter had disintegrated over time, and the engine was laboring greatly to run. On a hunch, I pulled off the air filter and saw the filter had disintegrated and was clogging the air inlet. Removing the limp remains, the engine immediately jumped to life and ran like new. Unfortunately, Kawasaki has abandoned all those who bought these generators. We are unable to purchase filters or any parts whatsoever. Luckily the Uni Filter foam material was the correct thickness to fit -- I cut it to size and it actually looked and fit factory perfect. The UNI Filter material was perfect for making replacement air filters, so I bought a second package as a reserve source in case another surprise failure among my stable full of motorcycles, mower, snow-thrower, and other equipment utilizing similar foam/oil air filters.

Have a 30 year old Tanaka. The filter in it was OK till I replaced the primmer bulb. It had to be removed to get to screws. It basically dissolved to dust when I tried to remove. This sheet of filter material allowed me to make a replacement for that filter with 90% or more of sheet left to use in future. Can make quite a few of that filter if needed.