10FT NEMA 6-20 20A 220V Plug to Lighted 15/20 220Volt Tri-Outlets UL – AC Connectors
parkworld 25 ft. STW 12/3 20 Amp 125-Volt NEMA 5-20 Extension Cord (NEMA 5-20P to 5-20R) 62220A - The Home Depot
AC WORKS 50ft NEMA 6-20 Cord 50-ft 12 / 3-Prong Indoor/Outdoor Sjtw Heavy Duty General Extension Cord in the Extension Cords department at Lowes.com
Southwire 50 ft. 10/3 STW 20-Amp Power Distribution Outdoor Heavy-Duty Generator Extension Cord with Power Light Plug 26188802 - The Home Depot
parkworld 10 ft. SJTW 12/3 20 Amp 250-Volt NEMA 6-20 Indoor/Outdoor Extension Cord 885750 - The Home Depot
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Extension Cord, 25 ft, 110/120V, 20 amp, NEMA 5-20 Plug/Receptacle | Quick 220 Electrical Systems
parkworld 6 ft. STW 12/3 20 Amp 125-Volt NEMA 5-20 Extension Cord 62190 - The Home Depot
AC WORKS Heavy Duty Durable Extension Cord (10FT NEMA 5-20 20A 125V) - Amazon.com