ETL LISTED: 50A rv receptacle, NEMA 14-50R outlet 125V with type 3R enclosure rainproof which compatible with the normal 50A NEMA 14-50P rv cord..Enough Space: There is plenty of room for heavy gauge wire and it's easy to getting the wires in the proper spot. The door can be closed while plugging in the 50A RV cord even with a large handle. And front lid will stay up while working on the box..WEATHERPROOF&ANTI-THEFT: Our 50A power outlet is constructed of heavy gauge iron for durability and protecting the power outlet from element. Doors can be locked to prevent power theft and anyone disconnecting the service. Now you can power your RV, motorhome, electric car, Tesla, generator, welder ect. in a safe and reliable way..EASY TO WIRE&INSTALL: There are multiple sides for wiring. You can go through the top existing hole for wiring and just unscrew easily. If you choose to knock it out, you may need to spend some time with tools such as knockout punch set or hole saw..WHAT YOU GET: 50 Amp rv electrical outlet box, 18 MONTHS WARRANTY and EXCELFU 100% Satisfying Customer Service, please feel free to contact us If there is any problem.