M & G Duravent 10DBK-E45 10 Inch Dura-black 24-ga Welded Black Stovepipe, 45 Deg Sectioned, Nonadjustable Elbow 45 degree elbow offsets obstructions as needed. For an economical, drip free, single-wall stove pipe, DuraBlack is an excellent choice. Constructed with die-formed end fittings. 24-gauge steel construction, lock-seemed, and painted black.