Premium 15-Feet 50-Amp Rv Extension Cord Trailer Motorhome Camper Power Supply Cable 100% Copper Heavy Duty 15 Foot RV Power Cord Extension Info: 15 Feet || 50 AMP || 125V-250V || 6/3 + 8/1 (inside cable has 3 wires that are 6 gauge and 1 wire that is 8 gauge) Male Plug: 14-50P; Female Plug: 14-50R ETL/CSA certified for safety; STW rated cable (service grade, thermoplastic, outdoor rated) to resist wetness and sunlight Heavy Duty Insulated cables that can withstand the harshest weather conditions and stay flexible even in cold weather!