SBI 3 Inch x 10 Foot Insulated Flex Duct

This product will not list any R or K value. This product is manufactured for customers who are looking for a pre-insulated flexible aluminum liner when adding outside air to any wood stove that may call for 3" flexible aluminum ducting to be added to a 3" outside air connection. This product would be much more ideal when compared to non-insulated flexible liner, as it would keep the outside air cold and subsequently more oxygen-rich to create a more efficient burn while also eliminating the common annoyance of cold air radiating from exposed, uninsulated liner inside of a home.