Adapter for towing a UK-spec caravan fitted with 12N & 12S plugs, with a vehicle fitted with a single 13-pin ISO 11446 style socket. Conversion lead to make vehicle & caravan/trailer electrics compatible when towing. This adapter would be required if your vehicle is wired with twin socket electrics, and the trailer or caravan has a single 13 Pin plug. 7 Pin to 13 Pin conversion Suitable for N & S type electrics 200mm cable