... and stabilityEasily cleaned with power sprayers by back flushingOur insect screens, correctly installed, prevent penetration, yet provide maximum possible ... that you use, you need to consider insect screen.ANTI-VIRUS INSECT SCREEN excludes Whitefly, Aphids, Leaf miners and ... 60 pre inch (6-24 holes per centimeter.) *The insect net also can apply for protecting hailstone ,wind, ultraviolet, radiation ...