50 amp, 125v/250v Power Cord Turn (to Install Marine Inlet Electrical) 50 Amp, 125/250 Volt Power Inlet; RV Cord Twist Electrical; 3 Poles, 4 Wires, Flanged Inlet Constructed of Non-metallic High Grade Polymer Housing with Rust free Metal Terminals to ensure a reliable connection Durable Construction; made to withstand harsh weather conditions Heavy Duty Unit is weather proof (when door is closed and installed properly) and installs directly into the RV One Year Guarantee against workmanship and defects; reference # HBL504nm.