Cable Matters 2-Pack 15 Amp to 3 Prong 30 Amp RV Adapter, 15A RV Plug (NEMA 5-15
Connect an RV to a standard 15 Amp grounded household power outlet with this 5-15P to TT-30R adapter; 30 amp RV adapter eliminates the need to rewire or install a dedicated RV power connector; At the campground, connect a 30 Amp RV to 15 Amp service with the camper plug adapter 30 amp.