STARELO Locking Plug for Generator NEMA L14-30P Extension Cord End Mal
AC WORKS 1.5 ft. 30 Amp 3-Prong L6-30P Locking Plug to 6-15/20 Outlet with 20 Amp Breaker L630CB620 - The Home Depot
L6-20P 3-Pin Male Twist Lock 220/250V Plug To L5-20R 3-Prong Female Twist Lock 110/125V Receptacle Socket Outlet Adapter, Electrical Power Cord Convert, NEMA FX711-2 - Amazon.com
WEN 125V 30-Amp 3750-Watt Generator to RV Adapter, NEMA L5-30P Twist-Lock Power Plug to TT-30R RV-Ready Outlet - Walmart.com
Conntek 30128-BK & 30128-YW NEMA L5-15P to 5-15/20R Plug Adapters
Locking Power Cord Adapter 15A Male To 30Amp Female Twist Power Cord Male to Female Camper Generator Cable Adapter Electrical Converter Plug - Leisure RV Parts