Secure and Reliable: Twist locking RV power inlet is ETL certified, with 3 pole 4 wire construction for secure and reliable power access in various weather conditions, so you can use it with confidence. Easy Installation: This 50A twist locking RV power inlet features easy-to-wire terminals, compact and lightweight design, allowing you to securely lock the wires in place for stable installation and secure use. Weatherproof Design: The RV power plug features a twist locking design with a weatherproof cover, providing protection against rain, snow, and extreme temperatures for long-lasting performance. Versatile Compatibility: The 50A shore RV power inlet is compatible with 6AWG 4C, 6AWG 3C, and 8AWG 1C wire specifications, suitable for a wide range of RV power needs with strong compatibility. Heavy Duty Design: This RV power plug inlet measures 3.7 x 3.3 x 5.5 inches, easy to install and use, with a heavy-duty structure design that provides a convenient and reliable power solution for your RV.