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
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
20 ft. 10/4 SOOW 30 Amp 4-Prong Dryer Heavy-Duty NEMA 14-30 Extension Cord | UltimateAdapterDepot
Rophor Dryer Extension Cord 4 Prong, 30 Amp NEMA 14-30P to 14-30R Extension Cord
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
S7 25 Feet 30 Amp NEMA 14-30P to 14-30R, 4 Prong Dryer/EV Extension Cord,125V/250V STW 10 Gauge - Newegg.com
14-50P 50A RV/ Generator/ Range Plug to L14-30R 4-Prong 30A Locking Connector – AC Connectors
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
PlugSaf 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 - Yahoo Shopping
4 Prong 30-AMP 10-Feet 250-Volt Generator Extension Cord NEMA L14-30p to L14-30r Generator Power Cord for Manual Transfer Switch, Portable Generators - China Locking Power Cord L14-30p L14-30r | Made-in-China.com
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