A "C" Condulet is a trade name for a conduit body. The "C" refers to the configuration. "C" Condulets have conduit openings on two opposite sides only, with access for pulling conductors on one side only. Think of a single device Bell box with only two threaded openings, top and bottom. Now streamline it, rounding the corners, and leaving no space for a device. That's a "C" Condulet.
