Houseables Generator Extension Cord, Electric Wire, 3 Prong, 30 Amp, 250 Volt, Single, Black, 25 Ft, All Rubber, 10 Gauge, Heavy Duty, L6-30, Commercial, Electrical Power Cable, with Locking Switch - Amazon.com
Conntek NEMA L5-30 30A 125V Generator Extension Cord
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
48034- 25ft, Generator Cord, 30amp, 125V (L5-30P to three 5-15R) - SuperGen Products
25 ft. 30A 125/250V Generator Extension Cord - Champion Power Equipment
Champion Power Equipment 25 ft. 30 Amp 240-Volt Generator Power Cord 48036 - The Home Depot