Product reviews for Corsair 400C Top Filter

The filter fits the Corsair chassis perfectly. The holes in the filter are much smaller than the filter that came with the chassis. The workmanship and finish are beautiful.  I also ordered the front filter for this Corsair chassis. The quality is the same. I didn't want to cover it up by putting the front cover back on.
The magnet that goes around the inside of the filter gives a good tight seal. I was worried about airflow. Airflow is not a problem. In fact, after playing with the fan speeds, I was actually able to reduce speeds and temperatures were fine.

Great product!!!