Amazon.com: Nema L5-30 Generator Power Cord 3 Wire 10 Gauge 125v 30 Amp ( Pigtail Adapter L5-30P to 5-15R) : Patio, Lawn & Garden
Amazon.com: Parkworld 691975 RV Pigtail Shore power 30A Male L5-30P to 5-15R Female Dogbone Adapter Power Cord, Twist Lock L5-30 Plug to 5-15 Receptacle (1FT) : Tools & Home Improvement
Iron Forge Cable 15 Amp to 30 Amp RV Electrical Adapter Power Cord, 12 - iron forge tools