Tow more than one trailer? Take advantage of your existing 4 Flat when adapting. The 47175 attaches to an existing 4 Flat to bring the lighting functions to the 6 Pole Round connector, leaving electric brakes, auxiliary power and ground as the only functions that need to be wired. The Multi-Tow design feature adds multiple towing options from one connector by providing sockets for towing both 6 Pole Round and 4 Flat trailers. Pre-wired for easier installation. Flexible wire increases installation options. Mounts to vehicle bumper. Includes mounting bracket and hardware. Corrosion resistant terminals. Includes 90 day warranty from date of original purchase.