Constructed with color molded-through and U.V. stabilized, the Builders Edge Utility Vents are durable, maintenance-free, and won't scratch, flake, or fade. Available in a wide range of colors to match your siding manufacturer, or choose the Paintable (030) option to easily match your home. Our Utility Vents also include a limited lifetime warranty for added peace of mind. Featuring patented exhaust flaps that remain closed when not in use, these vents are designed for side walls and come with an 8-inch aluminum tube (4-inch diameter). For additional protection, consider purchasing the optional small animal guard. With a net free area of 12 square inches, these Utility Vents are a reliable and long-lasting choice.