Generator 3 Prong to 4 Prong Power Adapter Cord, with Grip Handle – aoweitour
25 ft. x 10 Gauge Four Prong Twist-Lock 30A L14-30 Generator Extension Cord
Amazon.com: RVGUARD 4 Prong 30 Amp 100 Foot Generator Extension Cord, NEMA L14-30P/L14-30R, 125/250V Up to 7500W 10 Gauge SJTW Generator Cord with Cord Organizer, ETL Listed : Automotive
4 Prong 30 Amp RV Generator Adapter Cord with Grip Handle, L14-30P Twist Lock Male to TT-30R Female, Heavy Duty STW 10 AWG 12 Inch for Generator to RV Trailer Camper… - Walmart.com
Reliance PC3050 50-Foot 30-Amp 4-Prong Generator Power Cord – PC3050 – DuroMax Power Equipment
Conntek Generator Cords with 4 outlets L14-30P to (4) 5-15/20R