Amazon.com: RVMATE 30 Amp Generator Cord 4 Prong 75 Feet, NEMA L14-30P/L14-30R, 125/250V Up to 7500W 10 Gauge SJTW Generator Extension Cord, ETL Listed : Patio, Lawn & Garden
Amazon.com: Houseables 30 Amp Generator Cord 4 Prong, Extension Generator Cable, 10 FT, 125-250v, 7500 Watt Max Rating, UL CUL, NEMA L-14-30P, Rubber, 10 Gauge, Heavy Duty, L14-30, Transfer, Twist Lock Power
parkworld 10 ft. Generator 30 AMP 125/250-Volt 4-Prong Locking Plug L14-30P to 50 AMP 125/250-Volt SS2-50R(CS6364) Adapter Cord 62176A - The Home Depot
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
Generac 6329 50 ft. 30 AMP (30A) 4-Prong 120/240V Power Cord New – FactoryPure