Our 20 x 20 mesh, .008 diameter charcoal fiberglass insect screening allows more natural light and dramatically improves airflow compared to standard fiberglass screening. The charcoal color of this product absorbs more of the light spectrum, causing it to reflect less light, creating lower glare which makes the product less visible to the naked eye. This makes Clear Advantage practically undetectable from the exterior which enhances the curb appeal of your home or office. Clear Advantage is an economical replacement option for Anderson TruScene and Pella VividView screens.