The Westinghouse L14-30P to TT-30R RV Generator Adapter converts a 4-prong 30 Amp locking receptacle into a 3-prong RV Ready TT-30R outlet. Designed to provide a convenient way to alter the outlet you need, this is the adapter that will guarantee a secure connection. Safely connect your desired receptacles with the custom built-in grip for easy plug-in and removal without straining your cables.