USW 12/3 Twist to Lock Multi Outlet Adapter 3-ft 12 / 3-Prong Indoor/Outdoor Sjtw Heavy Duty General Extension Cord in the Extension Cords department at Lowes.com
4' 12/3 royal SO extension cord W Male & Female twist lock 20 amp plugs Hubbell | eBay
Amazon.com: Power Assemblies Spider Box Twist-Lock Generator Power Extension Cord, 50 Amp, 125/250VAC, SOOW Cable Type, Gauge 6/4, California Standard Compatible Lock Extensions, 25' Long, Color Black : Tools & Home Improvement
Superior RV ADC155018LL RV Power Cord Adapter - 50 Amp Twist Lock Female to 15 Amp Male
parkworld 50 ft. SJTW 12/3 20 Amp 250-Volt Twist Lock NEMA L6-20 Extension Cord 885675 - The Home Depot
12/3 twist lock extension cord 50 foot 991-9162 – Ships Fast from Our Huge Inventory | USA-CLEAN
50 Amp RV Extension Cord for Generator Inlet with Twist Lock - RecPro
VEVOR 30-Amp Generator Extension Cord, 25 Feet, 125V 3750W Heavy Duty Generator Outdoor Power Cord, NEMA L14-30P / Four NEMA 5-20R STJW Flexible Power Cable with Twist Lock Connectors, for Generators
NEMA 14-50P/SS2-50R 125/250V 50A RV Power Extension Cord w/ Twist Lock