Jetex Universal Exhaust Bends come in a range of diameters, and at angles of 30º, 60º, 90º, and 180º.
Jetex exhaust parts are designed to fit together using slip joints, for example a 2" version will be 2" outside diameter but one end will be flared in order to fit over another 2" outside diameter pipe. This does not apply to the 180º which is not flared on either end.