Amazon.com: IRON FORGE CABLE 50 Amp to 20 Amp RV Electrical Adapter Power Cord with Surge Protection Box, 1.5 Ft - 10/4 STW 14-50P Male Plug to 4 5-20R Female Receptacles : Automotive
Extension Cord, 25 ft, 110/120V, 20 amp, NEMA 5-20 Plug/Receptacle | Quick 220 Electrical Systems
AC WORKS 50ft NEMA L5-20 Cord 50-ft 12 / 3-Prong Indoor/Outdoor Soow Heavy Duty Locking Extension Cord in the Extension Cords department at Lowes.com
AC WORKS 20A NEMA 5-20 50-ft 10 / 3-Prong Indoor/Outdoor Soow Super Heavy Duty General Extension Cord in the Extension Cords department at Lowes.com