1-Foot 20 AMP Nema 6-20P Extension Cord 12AWG Nema 6-20 Heavy Duty Extension Power Cord 1FT,Nema 6-20P to 5-20R,6-20P to 6-15R/20R 20AMP T-Blade Adapter Cable,20A 250V Plug Adapter Cable - Newegg.com
Parkworld 62183 NEMA 5-20 Extension Cord 5-20P to 5-20R (T Blade Female Also for 5-15R Adapter) 125V, 20A, 2500W (2FT, STW)…STW - Walmart.com
Amazon.com: Parkworld NEMA 5-20 Extension Cord 5-20P to 5-20R (T Blade Female Also for 5-15R Adapter) 125V, 20A, 2500W (16FT) : Tools & Home Improvement
Household 15Amp Plug to 15/20A Household Over Kill Super Duty 10 Gauge Rubber Extension Cord – AC Connectors
L5-20P to 5-15R/20R Heavy Duty Power Adapter, 20A, 125V, 6 in. | Eaton
Amazon.com: Parkworld NEMA 5-20 Extension Cord 5-20P to 5-20R (T Blade Female Also for 5-15R Adapter) 125V, 20A, 2500W (25FT) : Tools & Home Improvement
Iron Box NEMA 25ft 5-20 Extension Power Cord - Durable and Reliable 20A, 125V, UL Listed Portable Generator Cord for Transfer Switches, Data Centers, and Other High-Powered Applications (Black) - Electronics Power
NEMA 5-20 Extension Cord - Multiple Lengths – SIGNAL+POWER