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There has to be a pull box between every four quarter bends in a conduit run.
Code states no more that 4 - 90 degree bends in a conduit run between pull boxes.
The 'Stub-up', or 90º bend, Back to Back Bends, Three Bend Saddles, and offset bends.
Conduit bodies are used to provide pulling access in a run of conduit, to conserve space where a full size bend radius would be impractical, to allow more bends to be made in a section of conduit or to split a conduit path into multiple directions.
4 quarter bend