AC WORKS Locking Adapter NEMA L14-30P 30 Amp 125/250-Volt 4-Prong Locking Plug to 50 Amp Straight Blade RV/EV/Range Connector RVL14301450 - The Home Depot
Honda PLUG 30A 125/250 VAC Generator Base Plug - Genuine Honda Replacement Part in the Generator Accessories department at Lowes.com
Westinghouse 30 Amp 120-Volt L14-30P to TT-30R Generator Plug Adapter 30114A - The Home Depot
Honda L5-30 125V Rv Adapter | eBay
Amazon.com: RVGUARD 3 Prong 30 Amp to 50 Amp RV Generator Adapter Cord 12 Inch, STW 10/3, L5-30P Locking Male Plug to 14-50R Female with LED Power Indicator, Green : Automotive
Honda Eu2000I, Eu2000 Harness Adapter Kit in the Generator Accessories department at Lowes.com
AC WORKS 1.5 ft. Welder Adaper Generator L14-30 Plug (4-Prong 30 Amp) to NEMA 6-50R 50 Amp 250-Volt Adapter Cord L1430650-018 - The Home Depot