Reese 20321 Adapter/Connector 4-Flat To 7-

This Tow Ready 20321 7-Way Electrical RV Trailer Adapter is ideal to use for converting wiring components. It features a tail lamp converter with a car end terminal and a 7-way round connector. This trailer wiring adapter is compatible with the 18156, 18157 and 18159 mounting boxes (sold separately). It features a sturdy plastic housing with a flip-up cover and a flexible cable tube to protect the wires.

Tow Ready 20321 7-Way Electrical RV Trailer Adapter: Use this 7-way trailer adapter to convert wiring components Converts a T-one or taillight with a 4-flat trailer end connector to a 6- or 7-way round connector For simple mounting, choose 6- and 7-way mounting box part numbers 118156, 118157 or 118159 (sold separately) Plastic housing with flip-up cover and flexible cable tube for protection