Marinco Pigtail Shore Power Adapter 50A Boat to 30A DockThe Marinco Pigtail Shore Power Adapter 30A Boat to 50A Dock allows you to connect from one dockside receptacle to one boat side inlet or equipment of a different power configuration. Fully molded and equipped with Marinco's sealing collar and covers for use in wet marine environments. Pigtail adapters are equipped with covers and sealing collars (where indicated), and are for use in wet locations. ; Marinco's unique sealing collar system with cover joins the adapter to the cordset with a positive, mechanical connection.; Product Features: Boat Side Female connector attaches to boat inlet or cordset, 50A 125/250V, Locking w/Sealing Collar System.; Dock Side Male plug attaches to dockside receptacle or cordset, 30A 125V, Locking.; Interchangeable with: Marinco P504-30; Furrion FP5530-SY;