On the page You can find prices for: 7 and 4 trailer plug
AutoSonic 7 Way Round Blade to 4 Way Flat Trailer Adapter, Trailer Connector Plug with Anti-dust Cover, Secure Cap, 7 pin to 4 pin Trailer Converter, Flat Connection, Weatherproof, Life Time Warranty
$7.99
MICTUNING Heavy Duty 7 way to 4 way Flat Blade Trailer Adapter Plug with Secure Cap Weatherproof
$7.99
Kohree Heavy Duty 7 way to 4 way Flat Blade Trailer Adapter Plug with Secure Cap Weatherproof
$7.89
NEW SUN 4 Flat to 7 Way Blade Trailer Adapter Electrical Connector with Mounting Bracket
$15.99
MICTUNING 4-Way Flat to 7-Way Round RV Blade Trailer Adapter Plug with Mounting Bracket
$16.99
NEW SUN 4-Way Flat to 7-Way RV Blade Trailer End Electrical Adapter Plug
$13.94
NEW SUN 4 Wire Flat Adapter Trailer LED Towing Plug Connector
$8.99
Hopkins 40974 Multi-Tow 7 Blade and 4 Flat Connector
$24.08
COROTC 4 to 7 pin Trailer Adapter, 7 Way Trailer Connector, Electrical Connector with Mounting Bracket