Nordfab Double Branches in 14 gauge galvanized steel are available with Quick-Fit® (QF) rolled ends in diameters up to 24″ and with flanged ends in diameters up to 72″. Also available with 30 degrees angle. When ordering specify A, B, C, D and end type(s). (A - C) ≥ (C-B) and (C) ≥ (D) Reducer at C or D may be required. Use formula above to determine. A vanstone end with rotational Angle Flanges is standard. If welded flanges are required, clocking must be specified.