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
10FT NEMA 6-20 20A 220V Plug to Lighted 15/20 220Volt Tri-Outlets UL – AC Connectors
Extension Cord, 25 ft, 110/120V, 20 amp, NEMA 5-20 Plug/Receptacle | Quick 220 Electrical Systems
NEMA 5-20P Straight Blade Replacement Plug Connector, Male Extension Cord Ends, 20 Amp, 125 Volt, 2 Pole, 3 Wire Grounding - AliExpress
AC WORKS® Household Extension Cord L520520-096 L5-20P to NEMA 5-15/20R – AC Connectors
20 ft. 30A 125/250V Flat Generator Extension Cord - Champion Power Equipment
ALLEGRO 50' Explosion-Proof Extension Cord, 110V, Black - EnSafeCo.com
AC WORKS 20A NEMA 5-20 10-ft 10 / 3-Prong Indoor/Outdoor Soow Super Heavy Duty General Extension Cord in the Extension Cords department at Lowes.com
Laird Digital Cinema Stage Systems Heavy Duty 20-Amp SSPC20A-25
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
6 FT 12 AWG 3 Prong Replacement Power Cord, 20 Amp 12 Gauge 3 Conductor Wire Extension Cable with Pigtail Open Wiring End. - Newegg.com
12/3 Gauge, 3 ft, STW POWER BLOCK, 125V, 20 AMP w/ Lighted Ends Contra
Extension #5 20A Extension Cord with 6-20 plug to 6-20 outlet – BSA Electronics
AC WORKS NEMA 6-20 20A 250V 25-ft 10 / 3-Prong Indoor/Outdoor Soow Super Heavy Duty General Extension Cord in the Extension Cords department at Lowes.com