8in. X 90 Degree Fixed Elbow for Single Wall Stove Pipe Our Single Wall Fixed Elbow is made with .030 cold-rolled, heavy gauge steel Superior pipe on the market due to it's thickness; 60% thicker than most brands 100% Laser Advanced Resistance Welded Seams creates a round pipe to pipe fit every time Installation support before and after the sale; we're here to help you do it yourself Use Single Wall Fixed Elbow with vertical pipe and minimum of 18 in. clearance to combustibles