Replacement socket for your Westfalia allowing you to swap the European socket to a UK standard 13amp 3 pin style.
Direct replacement on a T3 although you may have to fit the socket sideways due to the wiring position.
Obviously, this is mains electricity, so it goes without saying that if you're not sure seek professional advice before fitting.
Should also fit T4 and LT Westfalia models although not yet tested.
See related items for rear cover. Front cover can be swapped from the original as it matches the Westfalia interiors better than the newer style made for these sockets.