This 4” x 5’ Vinyl Duct Vent Kit with Louvered White Hood is designed to deliver effective use with quick and easy installation. The 4” hose diameter provides effective, full flow as it connects to the vent output to direct the flow outside. The waterproof louvered damper system helps prevent cold air, rain, snow, and pests from entering the home. Manufactured in the USA of corrosion-resistant materials, all parts are designed with excellent craftsmanship and durable construction to meet Jones Stephens’ highest quality standards.