Straight Adapter, 15A 125V Male To 30A 125V Female Part # S15-30 Straight Adapters are high-quality, one-piece adapters similar in usage to Pigtail Adapters. However, they do not have sealing collars and are not recommended for use in wet locations. Use only in an enclosed, dry location, such as powering your boat from a 15A power receptacle inside your house.
Connector (Boat or RV) Side: 30A, 125V
Plug Side: 15A, 125V
This is used and has visible marks on the exterior but the item works like new and is fully functional.