Dundas Jafine ProFlex 4" x 8' Aluminum Flexible Dryer Duct is expertly constructed from a durable 4-ply aluminum foil laminate, making it both flexible and reliable for your dryer installation needs. Designed to work ly with both gas and electric clothes dryers, this duct ensures safe and efficient ventilation. Its fire-resistant properties mean it will not support combustion, providing added safety for your home. This product is UL 2158A listed and marked, meeting high safety and quality standards for peace of mind. Model Number: