FF123B-3PK

Some of these reviews had me hesitant but I had to remove the front cover of my new overheating PC and needed something amazon fast. This brand has a solid reputation and arrived in branded packaging that looks legitimate. The magnetic frame works great and the only reason I can see it falling off is if the wrong side is used. Unfortunately, my tower has screws in the way so I have to screw them on. One downside to that is the top filter bulged out a bit when tightening it on so make sure you don't overtighten the screws and it should be fine. Idk if the 3pk I bought is of the highest quality they make but the price was decent and the filters do a great job without obstructing much airflow. My temps stay below what's recommended to safely idle and run games without having to add fans. You can't buy any random filter. Most use PVC and other materials that obstruct too much air. I wouldn't settle for anything other than nylon and this brand has lived up to its reputation.

Worked very well, mounted great, has a nice fine mesh, and the magnet could hold it to a pc case. Works very well and allows more airflow than the foam filter it replaced.

Please people, buy filters. Keep them clean. Your PC will thank you. These are great filters - fine enough to filter small dust without being overly restrictive. Many filters are so large they'll filter pet hair but hardly any dust. These are the perfect size, easy to clean, and have sufficient magnets to hold them in place.

These filters are excellent with one glaring design omission: they do not lay on top of screws very well. Have a look at the photo I posted and I will explain. Just about every case fan is held in by four screws, one in each corner. Those screws stick out from the face of the fan. If you use magnets to hold the filter in place and thus lay the filter on the face of the fan, then it doesn't lay well on top of those corner screws. It certainly won't be able to use those screws to "stick" to the fan. I happened to have magnets already on the face of my fans from previous filters I used, otherwise these would never have stuck. Maybe these are intended only for people to put onto metal cases. I don't know why anyone would want to screw in one of these filters given the fact that it's magnetic is a key feature. In any case I would like to see these fans designed with either wider diameter screw-holes in the corners or a thicker design that allows the body to rest on top of the corner screw-holes of fans. I had to cut the corners out of the 120mm filter to get it to fit; the 140mm filters are working okay though not flush to the face of the fan.

The filters that LianLi includes with a lot of their cases (I have the 011 Dynamic and Lancool II) are very restrictive for air flow. For a while I just took them off and dealt with the dust, but no more! I bought a HTPC case from Silverstone and was very impressed by the included dust filters and I wanted the same solution for my 011 Dynamic. These dust filters are magnetic and super easy to install on the 011. They work amazingly well and the fans keep the same volume level with the filters on and off which is not true with the included LianLi filters.

These dust filters are well made and can filter very fine particles. I used to buy cheap ones like these but the magnets usually separate and are somewhat flimsy. These are stiff and sticks well

Replaced the original filters in my Lian li O11 Air Mid Tower. I've had this for a week now so I can confidently review that after replacing, the fans are less noisy and have lower rpm. Temperature for cpu and gpu are consistently lower too while running games so airflow is much better. You can either screw it or just stick it on your case (if your case is steel) with the magnets.

Allows good airflow. Easy to clean and put back in place. Mesh is really tight for collecting dust. Unless you have OC'd your system to the point it is almost burning up all of the time so you can brag to everyone how wonderful of a PC you have, these work really good.

Wished the magnets were stronger. Doesn't impede airflow much. Dust collects on the filter pretty fast so make sure to clean the filter often. I've been using them on Tecware Forge M which has a mesh front but the case doesn't come with filters. 2 months in and there's just a tiny tiny tiny layer of very fine dust on the PSU shroud that was able to make its way through.

Die Löcher sind kleiner als bei Konkurrenzprodukten, daher klare Empfehlung. Lassen sich durch die magnetische Ladung quasi überall befestigen - verschrauben eben auch.

Me encanto, la malla es super fina por lo que complementa perfecto los filtros del gabinete que tiene orificios más grandes. Encaja perfecto en las fuentes grandes, además todo el marco es magnético y se agarra bastante bien. Lo he lavado y no se ha maltratado. En la bolsa se incluyen 3 piezas.

Quedaron a la medida son de 120mm los que yo compre la tela es fina por lo que se deve de tener cuidado a la hora de limpiarlos, eficiente para ese polvo finito que se acumula 100% funcional en la pc.

Magnets are weak.. mesh is great allowing airflow while catching small dust. Magnet function is non existant for my fractal north case