AC WORKS 100 ft. 8/4 SOOW Super-Duty 4-Prong NEMA L14-30 30 Amp 250-Volt Generator Rubber Extension Cord SDL1430PR-100 - The Home Depot
AC WORKS 100ft NEMA L5-30 Cord 100-ft 10 / 3-Prong Indoor/Outdoor Soow Heavy Duty Locking Extension Cord in the Extension Cords department at Lowes.com