3"x 25' Single Ply Chimney Liner
The most flexible single-ply chimney liner on the market. More ribs in all, between each seam this means more than double the flexibility than our competitor's brand. Seven ply quad knurled locked seams. 100% leakproof, air and water tight unbreakable lock. 316L .006 Stainless Steel all purpose for use with Oil, Gas, and Wood heating systems. Tested and approved to UL1777 zero clearance standards. Backed by a Lifetime Warranty. You can't buy a better chimney liner for the money anywhere! I.D. Size: 3" O.D. Size: 3.25"