parkworld 50 Amp Generator to Transfer Switch Inlet Box Adapter 30 Amp 125/250-Volt NEMA L14-30P Plug to 50 Amp Twist Lock CS6364 78295 - The Home Depot
Hubbell CS8265C Locking Plug, 50 amp, 250V, 2 Pole 3 Wire: Electronic Components: Amazon.com: Tools & Home Improvement
AC WORKS 50-Amp 125/250-Volt NEMA 4-wire Grounding Heavy-duty Locking Connector, Black in the Plugs & Connectors department at Lowes.com
Quick Products Twist Lock Adapter Cord - 30A Male to 50A Twist Lock, 12 in. QP-30M50T012 - The Home Depot
Amazon.com: Cable Matters 4 Prong 50 AMP RV Adapter Cable 25 ft (Generator Extension Cord/Generator Power Cord, 50 AMP Twist Lock Adapter, 50 AMP RV Cable) - 25 Feet (NEMA 14-50P to NEMA SS2-50R) : Automotive
3-Prong 15A to Twist-Lock 50A RV Power Adapter 1.5 Feet (NEMA 5-15P to SS2-50R)
Parkworld 62107
2 Pack 6/3 AWG + 8/1 AWG 50ft 125V 50 AMP RV Cord
parkworld 1 ft. 10/3 STW 3-Wire Welder 50 AMP 6-50P Plug to L6-30R 30 AMP Twist Locking Receptacle Adapter Cord 691821 - The Home Depot
Superior Electric RVA1510L RV Power Cord Adapter 30 amp Male to 50 amp Twist Lock Female Camper Detachable - Walmart.com
AC WORKS 50-Amp 125/250-Volt NEMA 4-wire Grounding Heavy-duty Locking Plug, Black in the Plugs & Connectors department at Lowes.com
parkworld 1.5 ft. 6/3 3-Wire 50 Amp 125/250-Volt Twist Lock SS2-50P Plug to 50 Amp 6-50R-Outlet Welder Adapter(SS2-50P to 6-50R) 885576 - The Home Depot
Amazon.com: ONETAK NEMA 14-50P to L14-30R 120V/240V 50 Amp 4 Prong Male Plug to 4 Prong Twist Lock Female Outlet Receptacle Generator Welder Dryer EV Charger Power Cord Adapter : Patio, Lawn
CS8165C to L16-30R Adapter | 50A CA Twist-Lock® to NEMA L16-30 Plug Adapter, 30A, 250V
50 Amp Twist Lock Adapter with Grip Handle, NEMA SS2-50P Male to 14-50R Female A | eBay