BOEEMI 4 Prong New Electric Dryer Plug Male to 3-Prong Old Dryer Receptacle Female Connector Adapter, NEMA 14-30P to 10-30R 4-Prong Dryer Outlet Adapter, 30A 125/250V 1.5FT, UL Compliant : Amazon.ca: Home
NEMA 14-50R 4 Prong 50 Amp RV Receptacle Wall Outlet 1450 EV Charger Dryer Range 810035502130 | eBay