Fan-Tastic Vent UB1500SM Smoke Ultra Breeze Vent Cover Fan-Tastic Ultra Breeze Vent Cover The Ultra Breeze Vent Cover has revolutionized the design of vent protection devices Not only does it allow you to keep your vents open in the rain but the exclusive patent-pending airfoil technology allows for up to 75 percent more airflow than competing products The Ultra Breeze has been field tested to provide superior protection for your vents while allowing between 95-100 percent airflow, the highest of any vent cover on the market Fits over most 14 Inch x 14 Inch roof vents and high-powered ventilators, including all Fan-Tastic vents Hardware included Made in the USA. Transparent and allows the most light penetration of any of the Ultra Breeze covers, Smoke