5.5"/ 6" x 10' Flexi-Sleeve For Flexi-Liner - 1760120
Selkirk 5.5"/6" x 10' Flexi-Sleeve For Flexi-Liner is designed only for use with Flexi-Liner. You can use it when the flue gas temperature is below 280°F at the thimble/breaching, large portions of the chimney are located on the exterior of the house, the liner is venting fan-assisted appliances, or the flue cavity is much larger than the liner.
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.