AC WORKS [ADL630L620] Plug Adapter L6-30P 30Amp 250Volt Male Plug to L6-20R 20Am | eBay
STARELO 2PCS Locking Plug for Generator NEMA L14-30P Extension Cord En
AC WORKS Generator Locking Adapter L5-30P 30A 125V 3-Prong Locking Plug to 5-15/20R 15/20 Amp Household T Blade Female Connector ADL530520 - The Home Depot
parkworld 20 Amp Locking 3-Prong L6-20P Plug to 20 Amp T-Blade 6-20R/6-15R Outlet Splitter Adapter(L6-20P to 6-20R/6-15R) 60677 - The Home Depot
NEMA L6-30P Twist Lock Electrical Plug 30 Amp 250 Volt 2 Pole 3 Wire 2P 3W Industrial Grade Locking Male Plug Connector Adapter Grounding for Generator, Transfer Switches RV Trailer, UL Listed - Walmart.com
AC WORKS Locking Adapter Generator/ RV/ Range 14-50P Plug to L6-30R 3-Prong 30 Amp 250-Volt Locking Female Adapter AD1450L630 - The Home Depot
CS Style CS6365C to NEMA L5-30R Locking Plug Adapter Power Cord – Locking Power Cords
AC WORKS V-Duo Adapter L14-30P 30 Amp 4-Prong Locking Plug to (2) 15 Amp/20 Amp Household Outlets ADVL1430520 - The Home Depot
Conntek 30128-BK & 30128-YW NEMA L5-15P to 5-15/20R Plug Adapters
Iron Forge Cable 30 Amp Male to 30 Amp Female RV Electrical Adapter Po - iron forge tools
L6-20P 3-Pin Male Twist Lock 220/250V Plug to L5-20R 3-Prong Female Twist Lock 110/125V Receptacle Socket Outlet Adapter, Electrical Power Cord Convert, NEMA FX711-2 - Amazon.com
ELEGRP NEMA L14-30P Locking Plug, Generator Twist Lock Adapter Male Plug, 30 Amp 125/250V 3 Pole 4 Wire Grounding, Industrial Grade Heavy Duty, UL Listed (1 Pack, Black/White) - Amazon.com
5-15P 3-Pin Male 110/125V Standard Wall Plug to L5-20R 3-Prong Female Twist Lock 110/125V Receptacle Socket Outlet Adapter, Electrical Power Cord Convert, NEMA FX706-2 - Amazon.com
Power Cord Plug Adapter 15 Amp Male To 50 Amp Twist To Lock Female 12" RV Electrical Converter Cord Cable with LED Indicator Light
AC WORKS 1.5ft NEMA L14-30P to NEMA 6-50R 30-Amp 4-wire To 3-wire Grounding Single To Single Orange Basic Flexible Adapter in the Adapters & Splitters department at Lowes.com