Amazon.com: OPL5 Heavy Duty RV 50 Amp Male Plug Replacement Electrical Plug Adapter with Handle RV Power Cord – 50A 125/250V 4-Prong Male for RV, Camper, Caravan (50A Male Plug) : Everything Else
ELEGRP 30 Amp/50 Amp 125/250-Volt 3-Pole/4-Wire NEMA 14-30P/14-50P Grounded Straight Blade Angle Plug, Black S143050P - The Home Depot