Feature: 1. 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. 2. Easy Installation: This 50A twist locking RV power inlet features easy to wire terminals, compact and lightweight, allowing you to securely lock the wires in place for stable installation and secure use. 3. Weatherproof Design: The RV power plug features twist locking design, with a weatherproof cover, ensuring guard against rain, snow, and extreme temperatures for long lasting performance. 4. 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, has strong compatibility. 5. Heavy Duty Design: This RV power plug inlet measures 3.7 x 3.3 x 5.5 inch, easy to install and use, heavy duty structure design, providing a convenient and reliable power solution for your RV. Specification: Item Type: RV Power Inlet Model: RV129R Material: PC NEMA: SS2-50P Voltage: 125/250VAC Current: 50A Wire Size: 6AWG 4C, 6AWG 3C, 8AWG 1C Minimum Size: Approx. 9.4 x 8.4 x 14cm / 3.7 x 3.3 x 5.5in. Package List: 1 x 50A RV Power Inlet 1 x User Manual