Shop Nilight RV Power Adapter Cord 15 Amp to 50 Amp Pure Copper Heavy Duty Dog Bone Plug 10 Gauge Wire 5-15P to 14-50R 15M/50F Weatherproof Cord for RV Camper Caravan Van Trailer in high quality, support 2 Years Warranty. The cord is coated with a heavy-duty flame retardant, heat resilient PVC sheath that serves as protection from the outdoor elements.