This very special product. First, it is a thin fan grill with a domed shape. It allows you to mount it between a case fan and the case. As a result its surface is on the same level as the surrounding area. Coupled with it's color, the grill is kind of "hidden." It has the look of the mesh grills often seen on car and house speakers.The uniform mesh with high hole surface area allows maximum airflow with minimum noise increase. This fan grill looks more "stuffed" than a traditional fan grill, but the hole to surface ratio is very high.Second, these screens provide acceptable filtering, especially large particles and dusts often found in households and offices. The steel structure makes it very easy to clean and remove dusts off the filter.Third, the small holes on the screen makes it a perfect design for blowholes on the top of a case. It does not allow most small, falling items such as screws to pass through by accident. It may even hold some drops of water by the surface tension. In comparison, traditional fan grills have this problem with their much larger gaps between grills.
Currently only available for 8 cm case-fan mounts. It should fit almost all cases and 8 cm case fans. The spacing on the holes is the same as that on a 80mm case fan. The dome thickness is 1/8 inch or about 3mm. The diameter of the slightly domed area is 2 and 7/8 inch or 73mm. The diameter is slightly smaller than most blowholes designed for 8 cm case fans. Hard steel material with a domed surface. It's very hard to bend the surface and is very light weight.Installation: For case fans, it should be mounted between the fan and the case. You have to disassemble the case fan if the fan is already mounted on your case.