Conntek 15304 15-Feet, 50-Amp RV Extension Cord with Ergo Grip and Power Light Indicator
RV Camp Power Extension Cord NEMA 14-50P to NEMA 14-50R 3 Pole 4 Wire Grounding, 50A 125/250V,  Easy to unplug Ergo Grip Handles LED Power Indicator on the connector Approval: Plug, Connector and 15FT STW 6/3+8/1: UL, C-UL.