Offsets obstructions as needed. Elbows (3 to 8 in) swivel 360 deg at base. 90 deg Elbow is adjustable from 0 deg to 90 deg in sizes 3 to 10 in. Elbows must be supported when installed.
DuraVent® Vent Elbow, Adjustable, 10 in, 90 deg, For Use With: Type B Round Gas Vent, Aluminum, Domestic