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
Leisure Cords NEMA L14-30 4 Prong Locking 30 Amp Generator Extension Cord, 50 ft | eBay
AC WORKS AC Connectors 10 ft. 10/4 Heavy Duty SOOW L14-30 30 Amp 125/250-Volt Generator Rubber Extension Cord L1430PR-010 - The Home Depot
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
L14-30P to L14-30R Generator Power Cord 10 Ft. 30 Amp 125/250V – Rackmount PDU
Amazon.com: ACKING Extension Cord NEMA L14-30P to L14-30R SJTW 10GUAGE 4 Prong Generator Cord Adapter, Heavy Duty L14-30 Twist Locking Connector Outlet Generator Power Cord up to 7500W (10FT) : Patio, Lawn
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
Conntek GEN1688 L14-30 Convenience Generator Power Cord, 25ft. Red