EEL ShorePower Y-Adapters enable you to split one dockside receptacle between two boat inlets of similar or dissimilar power configurations. In addition to the EEL ShorePower system, Y-Adapters incorporate the highest quality, marine-grade construction for which Marinco is known. Sealing color to create a weatherproof seal when joining cables together. Watertight molded plug and connector ends. Heavy-duty, super flexible marine grade cable. Corrosion-resistant, nickel-plated contacts.