Tripp Lite Heavy-Duty Power Extension Cord, 20A, 12AWG (IEC-320-C19 to NEMA 5-20P), 10-ft. - Critical Power Supplies
AC WORKS® [SD520PR] SOOW 10 Gauge 20A 125 Volt NEMA 5-20 Over Kill Sup – AC Connectors
Parkworld 885750 NEMA 6-20 Extension Cord 6-20P to 6-20R (T Blade Female Also for 6-15R), 250V, 20A, 5000W (10FT) - Walmart.com
Tripp Lite Heavy-Duty Power Extension Cord, 20A, 12AWG (IEC-320-C19 to NEMA 5-20P), 10-ft.
20 Amp Extension Cords at Lowes.com
Tripp Lite Heavy-Duty Power Extension Cord with 20 AMP Breaker, 20A, 10AWG (NEMA L5-30P to NEMA L5-20R) 2-ft.(P043-002): Amazon.co.uk: Electronics & Photo
Tripp Lite Heavy-Duty Power Extension Cord, 20A, 12AWG (IEC-320-C19 to NEMA L6-20P), 6-ft. - Critical Power Supplies
Utilitech 9-ft 12/3-Prong Indoor Spt-3 Heavy Duty General Extension Cord in the Extension Cords department at Lowes.com
Heavy Duty Cigarette Lighter Extension Cord Pure Copper Wire Cable 10ft 20A | eBay
NEMA 5-20 Extension Cord - 20A/125V 12 AWG - Iron Box # IBX-1010 | eBay