The HBL6750 Series Divided Entrance End Fitting is used for connecting HBL6750 Raceway with Rigid or Flexible Conduit. Concentric in. 1in. and 1 in. Trade Size KOs on Back and End. Full Capacity 1 in. Bend Radius Entrance End Fitting. Includes in. 1in. and 1 in. KO and Removable Dividers.