Amazon.com: RVMATE 30 Amp Generator Cord 4 Prong 100 Feet, NEMA L14-30P/L14-30R, 125/250V Up to 7500W 10 Gauge SJTW Generator Extension Cord, ETL Listed : Patio, Lawn & Garden
AC WORKS 1.5 ft. L14-30P Generator 4-Prong 30 Amp Plug to (4) NEMA 5-15/20R 20 Amp Household Female Connectors Adapter Cord L1430F520-018 - The Home Depot
AC WORKS 10ft L14-30P to CS6364 Cord 10-ft 10 / 4-Prong Indoor/Outdoor Soow Heavy Duty Locking Extension Cord in the Extension Cords department at Lowes.com
AC WORKS 1.5ft NEMA 14-30P to NEMA L6-30R 30-Amp 4-wire To 3-wire Grounding Single To Single Orange Basic Flexible Adapter in the Adapters & Splitters department at Lowes.com
Amazon.com: RVMATE 30 Amp Generator Cord 4 Prong 10 Feet, NEMA L14-30P/L14-30R, 125/250V Up to 7500W 10 Gauge SJTW Generator Extension Cord, ETL Listed : Patio, Lawn & Garden
AC WORKS 1.5 ft. 14-30P 30 Amp 4-Prong Dryer Plug to 30 Amp RV 10/3 Extension Cord Adapter RV1430TT-018 - The Home Depot
SEEUTEK 25 ft. 10/4 30 Amp Generator Extension Cord 4 Prong 125-Volt Indoor/Outdoor Extension Cord L14-30 with Lighted End Black BZ-1398 - The Home Depot
Leisure Cords NEMA L14-30 4 Prong Locking 30 Amp Generator Extension Cord, 50 ft | eBay