AC WORKS 25ft 8/4 SOOW Super-Duty NEMA L14-30 30A 125/250V Generator Rubber Extension Cord in the Extension Cords department at Lowes.com
Amazon.com: RVMATE 30 Amp Generator Cord 4 Prong 100 Feet, NEMA L14-30P/L14-30R, 125/250V Up to 7500W 10 Gauge SJTW Generator Extension Cord, ETL Listed : Patio, Lawn & Garden
Amazon.com: Miady NEMA L14-30P Generator Plug, 30 Amp 4-Prong Industrial Grade Locking Male Plug Up to 7,500W, Grounding Type/UL listed : Patio, Lawn & Garden
VEVOR 30 Amp Generator Cord 4 Wire 10-Gauge 40-ft / 4 3-Prong Outdoor Sjtw Heavy Duty General Extension Cord in the Generator Accessories department at Lowes.com
AC WORKS 1.5 ft. L14-30P Generator 4-Prong 30 Amp Plug to (4) NEMA 5-15/20R 20 Amp Household Female Connectors Adapter Cord L1430F520-018 - The Home Depot