NEMA 14-50 Extension Cord for Level 2 EV Charging (50A, 250V) - www.americancableassemblies.com
50FT 14-50P to SS2-50R 120V/240V 50 Amp 6/4 AWG Stow W/L14-30P to 14-5 — ONETAK
Champion Power Equipment 50-Amp RV Generator 30-ft / 1 3-Prong Outdoor Heavy Duty Locking Extension Cord in the Extension Cords department at Lowes.com
AC WORKS 50ft Super-Duty 5-15P to 5-20R Cord 50-ft 10 / 3-Prong Indoor/Outdoor Soow Super Heavy Duty General Extension Cord in the Extension Cords department at Lowes.com
Amazon.com: S7 50 Amp 30 Feet RV Power Extension Cord,50 Amp Generator Cord, Heavy Duty STW Wire, 50 Amp Male to 50 Amp Female Standard Plug with Listed : Automotive