25 ft. x 10 Gauge Four Prong Twist-Lock 30A L14-30 Generator Extension Cord
VEVOR 50 ft. Generator Extension Cord 250-Volt 30 Amp Generator Cord UL Listed Generator Power Cord with Twist Lock Connectors FDJYCX50FT30A0001V1 - The Home Depot
Amazon.com: 35FT 30 Amp Generator Extension Cord 4 Prong, NEMA L14-30P/L14-30R 10 Gauge STW 125/250V Twist Lock Generator Cord Heavy Duty, Green ETL Listed PlugSaf : Patio, Lawn & Garden
Southwire Generator Cord in the Generator Accessories department at Lowes.com