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
Leisure Cords 4-Prong 15 Foot 30 Amp Generator Cord, 10 Gauge Heavy Duty L14 -30 Generator Power Cord Up to 7500W (15-Feet) - Walmart.com