Champion Power Equipment 50-Amp RV Generator 30-ft / 1 3-Prong Outdoor Heavy Duty Locking Extension Cord in the Extension Cords department at Lowes.com
50-Amp Parallel Kit - Champion Power Equipment
50-Amp 15-Foot 6-Gauge 14-50 CS6364 Heavy Duty Generator Power Cord fo – XP5015GC – DuroMax Power Equipment
RV Dual 30 Amp Plug to 50 Amp Generator Y Adapter - RecPro
8.5-kW Home Standby Generator with 50-Amp Outdoor Switch - Champion Power Equipment
RV Dual 30 Amp Plug to 50 Amp Generator Y Adapter - RecPro
AC WORKS RV/ Marine Generator Adapter 4-Prong 30 Amp L14-30P Generator Locking Plug to 50 Amp RV/Marine Locking Female Connector ADL1430SS2 - The Home Depot
parkworld 50 ft. STW 6/3+8/1 RV/Marine 50 Amp 125/250-Volt NEMA 14-50P Straight Plug to Twist Lock SS2-50R Generator Power Cord 63333 - The Home Depot