From the Manufacturer

Bridgeport 812-DC2 3-Inch 90 Deg Fmc Connector, Armored Cable/Flex Conduit Connector, 90 Deg, Non Insulated, Die Cast Ball Burnished Mirror Smooth Zinc, Trade Size 3 Inch, Knockout Size 3 Inch, Single Cable Opening, Flex Metal Conduit, Length 7-15/16 Inch, (2) Screw Installation, Standard Package 5, Approval Csa, B[R] Brand