Amazon.com: OPT7 7 Pin to 4 Pin Trailer Adapter with Secure Tab, 7 Way Blade to 4 Way Flat Trailer Light Adapter, Connector for Trailer Tow Hitch and Redline LED Tailgate Light Bar : Automotive
MaxxHaul 7-Way Round to 4-Way Flat Trailer Plug Adaptor with 18 in. Flexible Cable Extends to 36 in. 70086 - The Home Depot
7 Pin Round to 7 Way RV Blade Trailer Adapter Connector Wire Harness – Nilight
Curt 57003 7-Way RV Blade LED Electrical Adapter | U-Haul
Trailer Light Electrical Adapter | StowAway
WEST MARINE 4 to 4-Way Round-to-Flat Trailer Plug Adapter | West Marine
Amazon.com: CXTM 7 RV Blade to 6 Pole Round, 6 Way to 7 Way Adapter 7-Way Blade to 6-Way Round Trailer Adapter 7 pin to 6 pin Trailer Wiring Plug Adapter : Automotive
Amazon.com: MECMO 7 Pole Round to 7 Way RV Blade Trailer Adapter Connector, 7 Pin Round to 7 Pin RV Die-Cast Zinc Female Socket, Semi Truck Trailer Adapter for Commercial Vehicle, Pickup
Trailer Wiring Adapter - 4 Way Flat to 7 Way Round | Meijer