4 Prong Male to 3 Prong Female dryer adapter, NEMA 14-30P to 10-30R 120V/240V 30 Amp, 3 to 4 Prong Dryer Plug Adapter, 4 Prone Dryer Outlet Adapter, 14-30P Male to 10-30R Female Receptacle for Old Clothes Dryer Converter; A great solution for dryer with old style 3 prong dryer plug but 4 prong new dryer wall outlet 14-30P to 10-30R Dryer Adapter: 4 Prong Male to 3 Prong Female dryer adapter allows you to use your old dryer with 3-prong (10-30P) dryer plug cord at new home with 4-prong (14-30R) dryer wall socket outlet; Max Power: 30 Amp, 125V/250V, 7500 Watts NEMA 14-30P to 4 Pole Socket: - New style 4 prong 14-30 plug 125V/250V 30 Amp molded plug commonly found in newer electric dryer plug, 14-30P Ground is empty (Open) NEMA 10-30R to 3 Pole Dryer - NEMA 3 pole 10-30 socket 125V/250V 30 Amp molded connector is an older style outlet that is commonly used for clothes dryers and found in homes built before 1996 Adapter for Newer Apartments/Houses: ; NO MORE rewire the house socket or hire an electrician, this plug and play 14-30 to 10-30, 3 to 4 prong dryer plug adapter is a great solution for dryer with old style 3 prong dryer plug but a 4 prong new dryer wall outlet Safe and Convenient: Light and ultra compact size, molded casing allows a comfortable firm grip and easy connection; Easily turns 4 to 3 prong for 3 pole plug from your old dryer, resolves power incompatibility between power cord and power source