POWERTEC 1 Micron Inner Air Filter for WEN 3410, POWERTEC AF4000/AF4001, Shop Fox W1830 Air Filtration System, Replacement for WEN 90243-026-2 Woodworking Air Filters for Workshop & Garage, 1PK

Fits well, it will replace the old filter next month. I get about 10 cleanings of these outer filters using a blow off gun with the compressor before the filter material looses its structural integrity, just be sure to do it from the clean side to push out the dust off from the dirty side and do it outside on a windy day and stay up wind from the filter so you don't get covered in dirt. A super simple hack that will keep your inner filter much cleaner and make the outer filter work to its best capacity is to simply take painters tape and seal the 5 micron filter to the filtration housing. takes about five cents worth of tape and less than a minute to do but what a huge improvement in keeping the inner filter really clean. you will save lots of money and get better filtration.

They fit my older Rikon tightly, quality seems good, and they're cheaper. A good thing since Rikon 400 inner filters seemed to be available at the time and I have 3.

I bought the WEN 3410 from the Blue home improvement store as I was given a gift card. I bought the 3410, installed it and noticed a gap around the sides and tops with the outer WEN filter installed. The fit of the interior filter was fine. I read one review that stated the outer filters from WEN fit loosely. Today, my POWERTEC 75040 5 Micron Outer Filter came in from Amazon so I decided I would see how it fits in the 3410. Can you believe it, these POWERTEC 75040 filters actually fit better than the outer filter that comes with the unit! With a horrible fit, I would be replacing the inner filter sooner rather than later! Attention WEN Quality Control; fix your outer filters, they don't fit! I will be buying POWERTEC filters for this unit going forward. The ones coming with the WEN are a waste of time and money.

I have the 3410, and the factory filters fit rather loosely in the housing. This tends to result in lots of dust going inside the unit (and out the front, actually) which makes things counterproductive. These need to be pushed in as they are very close to an exact fit. That results in a much better seal with the housing and a lot less airborne dust. Very helpful when the point is not just a cleaner shop but also the ability to breathe air rather than airborne fine dust.

These are a welcome alternative to the ~$80 Jet AFS-1000B OEM replacement filters. My filter unit is close to 25 years old and I've never replaced the inner filter as I've always had good luck blowing it out with compressed air. It started looking a bit worn so I ordered these. The fit was tight but they went in with gentle assistance from a rubber mallet. I look forward to seeing if they help clear the air in my fairly large 3-car home shop. I'm taking a star off because some of the description photos show a greenish color to the inner portion of the filter material - like my older Jet filter had, though they also show a photo of an all white version. There is no green material at all. At one time, the material color was supposed to represent a different type of material. It might not be important, and probably not at this price, but I have an issue with companies too lazy to post accurate description photos of their products. I happen to be a seller on Amazon and I know it is not difficult to update photos and accurately represent one's product.

Nice dust filters for my wood shop. Even during busy work times, they lasted long then the previous ones I purchased.

These replaced the mfr. unit. The ratings are the same, the sizing is the same and I note no difference in performance. What is noted, is less cost per unit. Very nice product for my woodshop.

I use these in my air filtration device in my workshop. Fit perfect - half the cost .

Exactly what I needed for my 2 When Air systems. The price was $80 for the the inner and counter filters, 4 in total. Will buy again. Thanks, would recommend.

Perfect fit in my shop fox air cleaner, seeming picks up all visible airborne particles and has the same filtration standard as the OEM filters.

Right price high quality

Excellent. But hard to find them.

Also fits wen air cleaner.