Converts 7-way blade connector socket to a 6-way round connector plug. Allows one vehicle to tow campers or utility trailers. Adapter has a non-corrosive glass-filled nylon shell and fits all OEM and aftermarket RV 7-way sockets, including the new P-893 (11-893) sealed socket. This P719 (12-719) adapter has a brake pin in the center of the 6-way round plug.