50 Amp 125/250 Volt RV Power Outlet Box, Enclosed Lockable Weatherproof NEMA 14-50R Outdoor Electrical Receptacle Panel, 50 Amp RV Receptacle for RV Camper Trailer Motorhome Electric Car Generator - Yahoo Shopping
ENERLITES 50 Amp Range Receptacle Outlet for RV and Electric Vehicles, NEMA 14-50R, 3- Pole, 4 Wire (8, 6, 4 AWG Copper Only), 125/250V, 66500-W, White - Walmart.com
50 AMP NEMA 14-50 Receptacle, Power Outlet, U.L. Listed, Industrial Grade - Amazon.com