NEMA L14-30P to 50A SS2-50R RV Marine Power Generator Adapter, 30A L14-30P to
NEMA L14-30P to 50A SS2-50R RV Marine Power Generator Adapter, 30A L14-30P to SS2-50R, 30A Male 4 Prong Twist Lock Adaptor to 50A SS2-50R Plug Female with Locking Ring, 125V/250V by FASWORX. 30 Amp to 50 Amp Adapter: Converts 30A NEMA L14-30P male 4 prong generator adapter to 50A SS2-50R female twist lock marine shore power connector.