Which Lifetime Chimney Liner is Best For Me? Single-Wall or Smooth-Wall?
3" Single-Wall Chimney Liner - Lifetime Single Wall Chimney Liners are strong and flexible liners that offer the most economical choice for the homeowner.
3" Smooth Wall Chimney Liner - Lifetime Smooth Wall Chimney Liners are double-layer liners that are built for super strength and long lasting durability. These liners actually increase the draft of your chimney by up to 20% over equal size corrugated pipe. See all 3" chimney liner.