L14-30P 4-Pin Male Generator 220/250V Plug to L10-20R 220/250V Receptacle Socket Outlet Adapter, Electrical Power Connector Twist Lock Cord Convert, NEMA FX1011 - Amazon.com
AC WORKS 1.5ft NEMA L14-30P to 4 NEMA 5-20R 30-Amp 4-wire Single To Four Orange Basic Flexible Adapter in the Adapters & Splitters department at Lowes.com
Reliance Controls PC3150 30-Amp 3-Prong 120V Generator Power Cord 50-Foot
L14-30P 4-Pin Male Generator 220/250V Plug To L10-20R 110/125V Receptacle Socket Outlet Adapter, Electrical Power Twist Lock Connector Cord Convert, NEMA FX125V1007 - Amazon.com
WEN Generator Cord in the Generator Accessories department at Lowes.com
TOOLIOM L14-30P/L14-30R Generator Extension Cord with UL Listed 25 feet 30A 125/250V - Walmart.com
parkworld 10 ft. 10/3 3-Wire RV 30 Amp 125-Volt NEMA TT-30P Plug to Generator L14-30R Transfer Switch Adapter Cord(2-Hots Bridged) 885446A - The Home Depot
6-50P Male 3-Pin Plug to L14-30R Twist Lock 4-Prong Female Generator Receptacle NEMA Power Cord Adapter/Converter FX475 - Amazon.com
AC WORKS® [TE1450RU] 50 Amp Generator Rubber Transfer Switch Power Cor – AC Connectors
VEVOR RV Extension Cord 30ft 50Amp STW 6/3+8/1 Electrical Power Cord UL Listed Heavy Duty Generator Cord N14-50P to Bare Wire Cut Wire Cord Extension Power Cord RV Motor Home Generator Portabl
VEVOR 25 ft. Generator Extension Cord 50 Amp UL Listed Generator Power Cord with Twist Lock Connectors, 250-Volt FDJYCX25FTX50ACZ1V1 - The Home Depot
Champion Power Equipment 25 ft. NEMA L14-30P to L14-30R Generator Cord in Yellow 100395 - The Home Depot