FILTERWEARSF104L For Napa 6637 Donaldson B085011 Baldwin PA2818 Fleetguard AH1141 Fram CA6818 Wix 46637; BLUE

I have the AFE washable filter in my 99 F350 7.3 diesel. The cover I got from Riff raff diesel does not cover the front of the cover, but does help keep the main body of the filter cleaner. It was time to clean the filter and look for something that more fully covers the front of the filer.Works great, Snug fit, and helps keep the top of the filer clean as well as the main body. Will likely add another to the pack.I like high flow filters, but have always added some type of cover for added filtration as well as protection of the engine.Very nice.

I recently purchased the FILTERWEARS Pre-Filter F104K for my air filter and have been extremely satisfied with my purchase. The pre-filter is easy to install and fits securely over my air filter, providing an extra layer of protection.One of the things that I love most about the FILTERWEARS Pre-Filter is that it extends the life of my air filter. It captures larger debris and dirt particles before they can reach the main filter, which means that I don't have to replace my air filter as frequently.The pre-filter is also very durable and easy to clean. It is made of high-quality materials that can withstand harsh conditions and is resistant to water and UV light.Overall, I highly recommend the FILTERWEARS Pre-Filter F104K to anyone looking to extend the life of their air filter and protect their engine. It is a simple and effective way to improve the performance and longevity of your vehicle.

Fit my Donaldson B085011 Filter nicely

Fits filter snug and keeps smaller particles out as described. Would buy again.

It fits over the large generator filter and helps with larger debris from clogging the main filter.Does a great job! I recommend for all air filters to have one if possible.

Was gonna order a riffraff cover for around the same price but the website charged my card thru PayPal while I was still tryin to set it all up and I hadn't had a chance to make an account or enter my address or email yet so I bought this one on here instead, had more colors to choose from and same if not better quality plus it came with 2 free stickers.

Must have for an open filter in the dust or sand. I’ve ran them on four wheelers and vehicles and been very happy. Will continue to purchase. It was also the correct size stated which is always nice.

Ok, pre-filters are STRICTLY preference. Know that! It’s a fine mesh formed into a bag. I’ve got a run through in mine already. I knew that going into it. Common people, don’t blame a product for faulty install. I bought i for the look and as a placebo. I don’t know if it really does any good, but when I do ( rarely ) wash it, it is nastier that it looks, and looks better than I think it will. NOT a lifetime product. Deal with it. I prefer to run them, yes. However, if one “miles out” and I forget to order another one or I’m broke at the time and can’t afford to buy another one, oh well. Not the end of the world. My air filter is open, no housing. I like the muted look of the black pre filter on a white filter element. In the end, yeah, I’ll be buying them ( from this brand ) as long as they make the colors I like and the sizes I run.

amazing product ! perfect fit

Good quality pre filter

Perfect fit and looks great, hoping to keep my filter fresh for as long as possible

Good quality product. Fit perfect over my aftermarket napa filter on my 1996 Ford F-Superduty 7.3l. Shipping how ever was exceptionally slow to Canada, over a month to arrive!

Covers my Fleetguard AH1141 perfectly, just be careful putting it on not to catch on the sharp parts of the mesh and you'll be fine. Looks good, protects my filter and acts like a prefilter. Does not lose any power and turbo sound if thats what you're looking for. What else could you ask for!