Amazon.com: 10-Feet (3.0 Meter) 20 Amp-250 Volt Nema 6-20P Extension Cord, 12AWG Nema 6-20 Heavy Duty Extension Cable, Nema 6-15/20R T-Blade Cord with Red Indicator Light, Black Color for Air Conditioner Etc. :
parkworld 50 ft. SJTW 12/3 20 Amp 250-Volt NEMA 6-20 Indoor/Outdoor Extension Cord 67911 - The Home Depot
Amazon.com: Iron Forge Cable 25 Ft 20 Amp Extension Cord - NEMA 5-20P to 5-20R Lighted Black SJTW T-Blade 125V 12 Gauge Electric Cable for Dryer, EV, Welder Iron Forge Cable is