Extension Cord, 25 ft, 110/120V, 20 amp, NEMA 5-20 Plug/Receptacle | Quick 220 Electrical Systems
AC WORKS® Household Extension Cord L520520-096 L5-20P to NEMA 5-15/20R – AC Connectors
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
Utilitech 9-ft 12 / 3-Prong Indoor Spt-3 Heavy Duty General Extension Cord in the Extension Cords department at Lowes.com