7-Way Round (Flat Pin) to 4-Way Flat Adapter Plug. Use a traditional 7-Way vehicle side socket with common 4-Way Flat trailer side wire harnesses with this simple adapter. Connects to your 7-Way socket and provides a female socket for your 4-Way harness. Features corrosion resistant contacts and tough nylon housing. Universal design mates with all RV style 7-way blade sockets and 4-Way Flat Plugs.
Connects with RV style Pin Out on round plug end.