Comparison : Item # 40C-SW-91-P, 4 Inch (in) Nominal Size Standard Wall Iron Pipe Size (IPS) Aboveground Conduit Elbow
Item # 30D-XW-91-P, 3 Inch (in) Nominal Size Extra Heavy Wall, Bullet Resistant ID Aboveground Conduit Elbow
Item # 20D-XW-91-P, 2 Inch (in) Nominal Size Extra Heavy Wall, Bullet Resistant ID Aboveground Conduit Elbow
Item # 15C-SW-91-P, 1 1/2 Inch (in) Nominal Size Standard Wall Iron Pipe Size (IPS) Aboveground Conduit Elbow
Item # 20C-SW-91-P, 2 Inch (in) Nominal Size Standard Wall Iron Pipe Size (IPS) Aboveground Conduit Elbow