RVGUARD 3 Prong 30 Amp to 30 Amp RV Generator Adapter Cord 12 Inch STW – rvguard
Leisure Cords RV Generator Adapter with 30 Amp 3 Prong Locking Male Plug to RV 30 Amp Female Standard Connector (3-Prong) - Walmart.com
RV 30 Amp Generator Plug Adapter 3 Prong - RecPro
AC WORKS 50ft NEMA L5-30 Cord 50-ft 10 / 3-Prong Indoor/Outdoor Soow Heavy Duty Locking Extension Cord in the Extension Cords department at Lowes.com
parkworld 8 ft. 125-Volt 30 Amp 3-Prong Locking NEMA L5-30P Plug to 4-Prong L14-30R Generator Adapter Cord (2 Hots Bridged) - Yahoo Shopping
AC WORKS 1.5 ft. L14-30P Generator 4-Prong 30 Amp Plug to (4) NEMA 5-15/20R 20 Amp Household Female Connectors Adapter Cord L1430F520-018 - The Home Depot