Deflecto Supurr Vent Vent Hood

Its curved louvers allow quieter operation and its durable weather-resistant design ensures it will last. Fits 4 inch dia duct. Louvered vent hood. UV stabilized to prevent discoloration or warping from sunlight. Opens with ease for maximum exhaust flow. Curved louvers for quieter operation. Durable & weather-resistant. Sold as 1/Each.