Our filters work on any of our 60mm ejection port Chamber Chiller models as well as our Magwell models. This filter is designed to capture larger particulates which is the most practical filter to use for most applications with only minor decreased airflow. The holes in the mesh fan material are 1mm in diameter. There is room underneath the large particulate filter to add additional filter material if needed for your application. The filter screws on with 2 Phillips head screws which are provided.