Amazon.com: Reese Towpower 8536200 6-Pin to 7-Blade Trailer Adapter with Center Pin Brake, 1 Pack : Automotive
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
7 round plug but only 6 wires from trailer | PopUpPortal
7-Way Flat Pin to 6-Way Round Pin Connector Adapter - Center Pin is Brake - Adapters - Wiring, Adapters, Connectors - Products
6-Way Car End Trailer Connector - RV Parts Express - Specialty RV Parts Retailer
URIAH PRODUCTS RV Trailer Connector Adapter, 7-Way to 6-Round | Killingworth True Value
Dr Infrared Heater 6 ft. 7-Way Trailer Plug Cord Wiring Harness, Heavy-Duty Weatherproof, Corrosion Resistant Inline Cable, for RV, Campers DR-RV106 - The Home Depot