Power Adapter 3 prong 15 amp Male to 30 amp 110 Female RV Camper Generator Plug Outdoor Electrical Power Converter, Straight Blade TT30P to 5-15R, Mini Size (15 Male - 30 Female, Yellow) - Walmart.com
Flanged Outdoor 15 Amp 125V AC Power Outlet Waterproof Plug & Cover, w/ 20" Cord | eBay
BESTTEN Wireless Outdoor Remote Control Outlet with 6-Inch Heavy Duty – BESTTEN US
15 amp Male to 30 amp Female RV Camper Generator Plug Outdoor Electrical Power Converter - Leisure RV Parts
Dumble Power Inlet Port Plug 125v 2-Pole 3-Wire AC Cord Port Plug 15 Amp RV Electrical Outlet Outdoor Enclosed Trailer - Amazon.com