Halex 25 ft. 10/3 30 Amp 125-Volt Marine Shore Power Extension Cord 31225 - The Home Depot
Champion 250-Volt Generator Extension Cord | BJ's Wholesale Club
AC WORKS 100ft NEMA L14-30 Cord 100-ft 10 / 4-Prong Indoor/Outdoor Soow Heavy Duty Locking Extension Cord in the Extension Cords department at Lowes.com
VEVOR RV Power Cord 30 amp Extension Cords 30 ft Heavy Duty TT-30P Marine Shore Power Cord STW 10AWG/3C, Waterproof for Mobile Homes and Recreational Areas - Walmart.com
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
Amazon.com: Camco PowerGrip 30-Amp Camper/RV Extension Cord | Features a Durable Heat-Resistant PVC Construction with 10-Gauge Wires and a Flexible Design | Rated for 125 Volts/3750 Watts | 25-Feet (55191) : Automotive