Champion Power Equipment 25-Foot 30-Amp 125/250-Volt Duplex-Style Flat Generator Extension Cord (L14-30P to Four 5-20R) - Thermoplastic - Yellow in the Generator Accessories department at Lowes.com
VEVOR 50 ft. Generator Extension Cord 250-Volt 30 Amp Generator Cord UL Listed Generator Power Cord with Twist Lock Connectors FDJYCX50FT30A0001V1 - The Home Depot
Amazon.com: Generator Parallel Cables Kit for Honda Inverter Generators by Journeyman Pro, w/Carrying Case | 30 Amp RV Power Cord Accessories, EU2200i EU2200IC EU1000i EU2000i EU2000i EU3000i (Right Angle 6-FOOT) : Patio,
Conntek NEMA 14-50 50 Amp RV / Generator Extension Cord