parkworld 50 ft. 10/4 125-Volt/250-Volt 30 Amp 4-Prong NEMA L14-30 Generator Power Extension Cord (NEMA L14-30P to L14-30R) 692293 - The Home Depot
Amazon.com: L14-30P to 2X L14-30R Y Splitter Power Cord, 30A, 250V, 10/3 SJT, 8ft + 2ft Legs : Electronics
Amazon.com: 25 Feet NEMA L14-30P/L14-30R Generator Extension Cords, 4 Prong Heavy Duty, 30 Amp,125/250V,Up to 7500W 10AWG Cable and The Cable UL Certification,Yellow : Patio, Lawn & Garden
30 Amp NEMA L14-30 Generator Extension Power Cord – GearIT
Nema L14-20P to L14-30r Pigtail Adapter 18 Inch Length – MPI Tools
25' Heavy Duty L14-30P to L14-30R Power Cord Extension With Storage St – FIRMAN Power Equipment
Westinghouse
Amazon.com: 20 Feet NEMA L14-30P/L14-30R Generator Extension Cords, 4 Prong Heavy Duty, 30 Amp,125/250V,Up to 7500W 10AWG Cable and The Cable UL Certification,Black : Patio, Lawn & Garden
Parkworld 10ft Extension Cord 10AWG TT-30P to L14-30R Adapter Cable for Renogy Lycan 5000 - Walmart.com
Champion Power Equipment 25 ft. NEMA L14-30P to L14-30R Generator Cord in Yellow 100395 - The Home Depot
8/4 SOOW Super-Duty NEMA L14-30 30A 125/250V Generator Rubber Extension Cord – AC Connectors
AC WORKS 1.5ft NEMA L14-30P 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 25ft NEMA L14-30 Cord 25-ft 10 / 4-Prong Indoor/Outdoor Soow Heavy Duty Locking Extension Cord in the Extension Cords department at Lowes.com
Conntek GEN1688 L14-30 Convenience Generator Power Cord, 25ft. Red