These adapters are equipped with covers and locking sealing collars to join the adapter to the cordset with a positive, mechanical connection which provides for maximum moisture protection and are for use in wet locations.
When using any adapter remember: Outlet and equipment must be of the same voltage rating. Total amperage drawn should not exceed amperage rating of the lowest rated component of the adapter. Polarity and grounding must be maintained both dockside and boatside. A single cordset should only draw power from a single receptacle.

MARINCO Adapter 30A-F/50A 125/250-M 121A.