OZ-Gedney Type EFL Concrete Slab Electroform 90 DEG Conduit Insert, Size: 1 IN, Malleable Iron, Finish: Zinc Plated, Dimensions: 2-1/2 IN Base Diameter X 2-15/16 IN Base To Conduit Center X 3-11/16 IN Height, 3-13/16 IN Turning Radius, Third Party Certification: UL File Number E-11853, CSA 009795, Applicable Third Party Standards: UL 514B, CSA: C22.2 No.18, Federal Specification W-F-408E, For Concrete Slabs 6 IN Thickness And Up, Threaded Rigid Conduit And IMC