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
Silipac 6.3" Twist Lock Cable Ring Carabiner (Plastic coated series)
Quick Products Twist Lock Adapter Cord - 30A Male to 50A Twist Lock, 12 in. QP-30M50T012 - The Home Depot
Twist-O-Lock - Glendinning Products
WeldingCity® Dinse-type Twist-lock Cable Male Connector Miller® Style 35-50mm for AWG #2-1/0
Extension cord for 120V pump with twist lock plug (L5-15R to L5-15P) - The Electric Brewery
Southwire 50 ft. 6/3 and 8/1 SEOW 50-Amp (California Standard) Power Distribution Heavy-Duty Twist-Lock Generator Extension Cord 19380008 - The Home Depot
VEVOR 20 Ft 30 Amp Generator Extension Cord 4 Wire 10 Gauge 125V 250V UL & CUL Listed Generator Power Cord Twist Lock Connectors - Walmart.com