VEVOR RV Power Extension Cord 50 ft. 50 Amp Generator Cord N14-50P to SS2-50R General Purpose Cord Heavy-Duty Twist Lock UL HJLJQYT50X50DSK01V1 - The Home Depot
RV 50 amp locking power cord, 50 ft.
Power Cord, 50 Amp, 1 Phase FH - The Ceramic Shop
30 ft. 50A 125/250V Generator RV Cord - Champion Power Equipment
Sportsman Series 30 ft. 125-Volt to 250-Volt 50 Amp Marine Type Pigtail Extension Cord - Yellow - Sportsman Generator Cord in the Generator Accessories department at Lowes.com