AC WORKS Super-Duty L14-30 Cord 50-ft 8 / 4-Prong Indoor/Outdoor Soow Super Heavy Duty Locking Extension Cord in the Extension Cords department at Lowes.com
10 ft. x 16/3 Gauge Indoor/Outdoor Extension Cord, Orange
HDX 40 ft. 16/3 Multi-Directional Outdoor Extension Cord, Green EXG-16340M - The Home Depot