The Vevor 30A RV power outlet box provides a secure and weatherproof power connection for RVs, campers, trailers, motorhomes, and other outdoor power applications. Its lockable enclosure, NEMA 3R protection rating, and durable construction help protect against dust, water, and harsh outdoor conditions. The box includes pre-knocked holes in multiple sizes and ample internal wiring space for flexible installation. A pre-equipped 15 cm grounding wire helps simplify setup on walls or other hard surfaces.