All Marinco 30A PowerCord Marine Cordsets are made of the highest quality, marine-grade construction with features you won't find on other power cords: Various length and color options for your specific needs. Watertight molded plug and connector for safety and durability. Heavy-duty, super flexible 10 gauge, 3 conductor cable. Molded grip ends with Line-Up Ridge for easy blade alignment. All models also include a standard threaded ring for hook-up to ordinary threaded inlets.