Part Number: 1740120
eFireplaceStore Item Number: CPF-77100
Flexi-sleeve for 3-inch or 4-inch Flexi-liner pipe is made of 2-ply 3003-alloy aluminum construction. Use it when the flue gas temperature is below 280 degrees F at the thimble, when large portions of the chimney are located on the outside of the house, when the liner is venting appliances with fans, or when the flue cavity is a lot larger than the liner itself. The sleeve is 10-feet long and designed only for use with Flexi-liner pipes.