Fisheye in-line air filter for paint spray gunFisheye 9200 Inline Air Filter 1 4" for paint spray guns Fisheye filter doesnt trap water and other harmful contaminants IT BLOCKS THEM! The advanced element in this product filters down to . 85 microns while still maintaining excellent air flow. When the element becomes completely saturated, it reduces airflow and will not allow you to spray to your desired PSI until the element is replaced. This is important in maintaining the quality of your