This is a steel conduit elbow made for Electrical Metallic Tubing (EMT), fashioned to create a 45‑degree bend when connecting two lengths of EMT. It’s constructed from hot‑dip galvanized steel, which gives it good resistance to corrosion and abrasion — both inside and out. The elbow has a “standard radius,” meaning the bend is pre‑formed to a standard curvature that makes conduit runs orderly and helps maintain conduit integrity. It meets applicable standards (such as ANSI C80.3 and UL 797) required for electrical conduit fittings, which ensures it’s suitable for typical indoor or outdoor EMT installations where the conduit is not subject to severe physical damage. It’s used when you need to change the direction of a conduit run cleanly and safely — for example running EMT around corners, obstacles, or to align with junction boxes or panels.