Shop Nilight RV Locking Adapter Cord 50 Amp to 30 Amp Pure Copper Heavy Duty Dog Bone Plug 10 Gauge Wire 14-50P to L5-30R 50M/30F 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.