24 in. x 24 in. Octagon White Polyurethane Weather Resistant Gable Louver VentFypon louvers and gable vents offer an attractive accent applicable to an array of architectural styles. Fypon offers functional (venting) louvers designed to provide optimum ventilation, they feature angled slats to help protect interiors from the elements. The inside of the functional lover has a corrosion resistant screen that helps keep insects out while allowing airflow between the slats. Lifetime limited warranty for homeowners Low maintenance