Valterra A10-1550D90VP Mighty Cord 90° Detachable 12" Adapter Cord - 15AM to 50AF, Red (Carded).

Adapter cords with 90° female locking connectors
Reduces stress on both the cord and the inlet
15 Amp Male to 50 Amp Female
LED power continuity lights
Heavy-duty cable is designed for outdoor use.