The Superior Flex 5 I.D. X 15' long 5FLEX15 is a high-quality flexible aluminum chimney liner designed for venting wood, oil, and gas appliances. Manufactured by Superior Fireplaces, this product is durable and reliable, providing an efficient venting solution for your fireplace or heating system. The 5 inner diameter and 15-foot length make it suitable for various installations, ensuring proper ventilation and safety. Easy to install and compatible with a range of appliances, the Superior Flex 5 I.D. X 15' long 5FLEX15 is a top choice for homeowners and professionals in need of a superior chimney liner solution.