Comparison : Item # 30D-XW-10-S, 3 Inch (in) Nominal Size Extra Heavy Wall, Bullet Resistant ID Aboveground Straight Conduit with Straight Socket
Item # 20D-XW-10-S, 2 Inch (in) Nominal Size Extra Heavy Wall, Bullet Resistant ID Aboveground Straight Conduit with Straight Socket
Item # 40D-XW-10-S, 4 Inch (in) Nominal Size Extra Heavy Wall, Bullet Resistant ID Aboveground Straight Conduit with Straight Socket