Inside Corner Elbow Connector 1/2″, Zinc, For 90Ëš Bends
https://nsiindustries.com/product/inside-corner-elbow-connector-1-2-zinc-for-90%cb%9a-bends/
Bridgeport 1/2″ Inside Corner Elbows ensure high-quality connections between two sections of EMT conduit to form a 90° bend. The inside corner cover allows for installation in locations where the side or back of the elbow is inaccessible.