Camco Camper/RV Dogbone Electrical Adapter - Features 15-Amp Male (NEMA 5-15P) & 30-Amp Female (NEMA TT-30R) - Rated for 125 Volts/1875 Watts & Crafted w/Copper 10/3-Gauge Wires (55165). Effortless RV Power Converter: Get stable and dependable RV power with Camco's Power Grip 12" 15 amp to 30 amp RV adapter.
eBay