36" length section. 14" inner diameter. Tested and listed to UL 103HT standard. Use with DuraVent DuraTech chimney pipes: A venting pipe with an inner diameter of 14" is required for this unit. This section of DuraVent DuraTech factory-built chimney liner is just another of the fine components you’ll find under the DuraVent DuraTech name. The inner diameter of this liner is 14", and the length is 36". For wood, oil, coal, and gas applications, it has been tested and listed to the UL 103HT Standard. DuraVent DuraTech is known for its user-friendly attachments and light weight ThermaTech blanket insulation. Please notice that there are no twist-lock connectors in this part.

36" length section 14" inner diameter Tested and listed to UL 103HT standard Designed for use with DuraVent DuraTech chimney pipes