4" X 25' Flexi Basic Kit Type B Gas Relining Aluminum Flexi-Liner Extension Kit - 1740025
Selkirk 4" X 25' Gas Relining Aluminum Flexi-Liner Extension Kit is the toughest aluminum flexible chimney liner that you can buy. Flexi-Liner is built better for increased compressibility (which results in smaller cartons) and a rugged, rip-resistant product.
WARNING: Carcinogens: This product can expose you to chemicals including Lead, which is [are] known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.