parkworld Generator 30 Amp 3-Prong Locking L5-30P Plug to 50 Amp RV 4-Prong 14-50R Outlet Splitter Adapter(L5-30P to 14-50R)For RV 691937 - The Home Depot
AC WORKS® 1.5FT L5-30P 30A Locking Plug to 30A RV Generator Adapter – AC Connectors
NEMA L5-15P to 5-20R Plug Adapter | 1 Foot, 15A, 125V
International to NEMA Twist-Lock Plug Adapters | L6-15, L6-20, L6-30 to Schuko / VDE
CS8165C to L16-30R Adapter | 50A CA Twist-Lock® to NEMA L16-30 Plug Adapter, 30A, 250V
AC WORKS L6-30P 3-Prong 250V Locking Plug to 6-30R 3-Prong 30 Amp 250 Volt HVAC Female Adapter in the Adapters & Splitters department at Lowes.com
3 Prong Regular Household Outlet to Twist N Lock Adapter PPV Fan Fire
L5-15P Twist Lock Male 3-Pin Plug To 5-15R 3-Prong Female Receptacle Outlet NEMA Electric Power Cord Adapter/Converter 110125V input 110/250V Output - - Amazon.com
STARELO Locking Plug for Generator NEMA L6-30P Extension Cord End Male
Conntek NEMA 5-15P to L5-30R 15 Amp 125 Volt Locking Plug Adapter, Black | eBay