*PLUMBERSSTOCK EXPERT* responded:
Hi! We appreciate your interest in our Metal-Fab 6DWB45 6" black double wall stove pipe. According to Metal-Fab, their black pipe is not compatible with Duravent. Here at PlumbersStock, we offer a wide selection of products. If you're interested, you can click this list of double wall elbows. If you're interested in purchasing a product, feel free to click "Add to Cart", enter your zip code and you're all set. Thank you for visiting PlumbersStock.com. Happy shopping!