ToughGrade 30A 4-PIN LOCKING MALE TO 30A FEMALE GENERATOR ADAPTER -Heavy-duty round power adapter for a generator to RV. -1 piece RV Adapter L14-30P to 14-50R support max 30 Amp overload, 125V/3750W 250V/7500W. -Molded with an electroplated copper terminal to avoid surface oxidation.