AC WORKS 15ft NEMA 14-50P to CS6364 15-ft 6 / 4-Prong Indoor/Outdoor Stw Heavy Duty Appliance Extension Cord in the Extension Cords department at Lowes.com
50 ft 50 Amp RV Extension Cord With 90 degree Easy Plug angle Trekpowe – trekpower
Camco 15' 50-Amp Power Grip™ Extension Cord at Menards®
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
Twist Lock RV 50 amp Power Cord with LED Power indictor - 50 Amp Male to 50 Amp 90 Degree Female Locking Plug 36 Foot
AC WORKS® 15FT RV 50A Detachable Power Cord for RV/ Trailer/ 5th Wheel – AC Connectors