As everyone here has said, the outlet at your AirBnB is a 14-50 outlet. You are currently using a 6-50 outlet at home. I will just add that the 14-50 outlet at the AirBnb is one of the most common 220-240V outlet types. You will find them at many campgrounds and RV parks, etc. So if you were going to invest in ANY electrical adapter for your EV charger, buying this adapter would be one of the better investments for you to make. There's a good chance you would use it again somewhere in the future.