parkworld Generator 30 Amp Locking 4-Prong L14-30P Plug to 30 Amp 3-Prong L5-30R Outlet Splitter Adapter(NEMA L14-30P to L5-30R) 884913 - The Home Depot
Amazon.com: SURIEEN 1.5FT 30Amp L5-30P Generator Male to L14-30R Transfer Switch Female Generator Plug Adapter Cord, Nema 4 Prong to 3 Prong Generator Transfer Switch Adapter Cord for Generator, STW 10AWG :
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Power Converter, L14-30P Twist Lock Generator 220/250V Male Plug To TT14-50R 110/125V RV Travel Trailer Camper Motor Home Female Socket Receptacle Outlet Cable Electric Cord Adapter FX125V864 - - Amazon.com
AC WORKS® 1.5FT 30A 4-Prong L14-30P Generator to Outlet with 20A Breaker – AC Connectors
Parkworld 61810 Adapter Cord 4 Prong Generator Plug L14-30P to 10-50R Electric Stove Receptacle, NEMA L14-30 Generator Male to NEMA 10-50R Electric Stove Female, 30A 250V 7500W, 1FT - Walmart.com
Screw Lock Locking Cable End Generator Plug Adapter AC 250V 30A 700836473343 | eBay