The Gutter Filler acts as a gutter topper to block debris from getting into the gutters of your home. With the Gutter Filler gutter topper, since no debris ever gets into your gutters, there is nothing to clog your underground drain system, allowing the drain to freely remove damaging rain water from your home. When you install a Gutter Filler protection system, only the water passes through. The water runs through as intended – free of any solid debris. Dried debris and leaves are exposed to the wind and blows away easily. Contact us at (919)783-8633 for more information on our products.