Camco 55382 RV Generator Power Cord Adapter - 30F/4 Prong
Honda 4-prong locking plug (male) G : Babbitts Honda Generator House
CircleCord NEMA TT-30P to L14-30R Adapter Cord, 30 Amp 3 Prong to 4 Prong
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
parkworld 3 ft. 125/250-Volt 30 Amp Generator 4-Prong L14-30 Splitter NEMA L14-30P Plug to (2) L14-30R Receptacle Y Adapter Cord 60462 - The Home Depot
VEVOR 50 Amp Generator Cord 30-ft / 4-Prong Outdoor Stw Heavy Duty General Extension Cord in the Generator Accessories department at Lowes.com
30 Amp Generator Power Inlet Box for 4 Prong Generator Cord - 30A 125V/250V - RecPro