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

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!

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.

There are others, but this is the best quality foam out there. Durable and effective.

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.

Turns out nobody makes an air filter for my generator anymore, so this Unifilter generic foam was perfect. Just measured the filter opening and cut me a new filter out of this stock.You might want to order a spray can of filter oil to go along with it.

I used this for air filter on my MG MG dealers were 5 -8 weeks out easy to cut worked great

Good price and fast shipping