Shore cord adapter - 30A dock x 15A socket - Marinco
Marinco #S30-15. Used for plugging in tool or extension cord with 15A or 20A connectors to 30A 3-prong socket on dock. See picture. If you are unsure of which connector to get, e-mail or phone and we'll sort you out.
Be careful to not overload circuits!
Does not have locking ring - so is not rainproof. Use care in wet weather and around docks.