Valterra’s Mighty Cord 12 in. Generator Adapter Cord is a dog bone-style adapter for connecting 30 amp generator power to 30 amp RV power. It has a 3-prong twist lock connector for secure connection to your generator and is a L5-30 plus design. The cords are constructed with heavy-duty cables designed for outdoor use. The cord is red and the length is 12 inches.