VEVOR 40 ft. Generator Extension Cord 110-Volt 30 Amp Generator Cord UL Listed Generator Power Cord with Twist Lock Connectors FDJYCX40FT30A0001V1 - The Home Depot
AC WORKS 25ft 8/4 SOOW Super-Duty NEMA L14-30 30A 125/250V Generator Rubber Extension Cord in the Extension Cords department at Lowes.com
25 ft. 30A 125/250V Flat Generator Extension Cord - Champion Power Equipment