Conntek 10305 7 Way to 4/5 Way Flat Trailer Plug Adapter
Kohree 4 Way Flat to 7 Way Round Blade Trailer Adapter
Amazon.com: OPT7 7 Pin to 4 Pin Trailer Adapter with Secure Tab, 7 Way Blade to 4 Way Flat Trailer Light Adapter, Connecter for Trailer Tow Hitch and Redline LED Tailgate Light Bar : Automotive
Amazon.com: MICTUNING 4-Way Flat to 7-Way Round Blade Trailer Adapter Wiring Plug Connector with Mounting Bracket : Automotive
Adapter-7-Way to 4/5-Way Flat | West Marine
Seven-Way Blade to 4-Way Flat Trailer Adapter
TowSmart 7-Way Blade to 4-Way Flat Trailer Light Wiring Adapter 1415 - The Home Depot
7-Way Round to 4-Way Flat Pin Adapter For Trailer Tow Hitch & Redline Tailgate LED – OPT7 Lighting Inc
Reese Adapter 7 Way Round to 4 Way Flat in the Trailer Parts & Accessories department at Lowes.com