Connect RV 30A 3 conductors TT-30R RV 3-prong 30amp outlet to Shore power 50 AMP 4 pole Marine style locking plug. (X-pole connect to Y-pole in female.) UL & cUL approved and Listed, Heavy-duty for Camper, 100% copper conductor inside. Molded with electroplated copper terminal in order to avoid surface oxidation effectively. Camper 3-prongs TT-30 Plug with handle, easy to push and pull, 125 Voltage.
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Halex - RV & Marine Cords - Extension Cords - The Home Depot