Southwire 5-15P TT-30R RV Plug Adapter in the RV Accessories department at Lowes.com
World Travel Adapter Kit with 2 USB Ports & 2 Outlets | Ceptics
AC WORKS 30 Amp TT-30P to 5-20R 15 Amp/20 Amp RV Adapter Household Outlet with Power Indicator RVTT520 - The Home Depot
Amazon.com: EPICORD 30 Amp to 15 Amp 110 RV Adapter Cord, NEMA 5-15P Male to TT-30R Female Electrical Power Dogbone, Heavy Duty STW 10 Gauge for RV Trailer Camper with LED Power
Amazon.com: RVGUARD 3 Prong 30 Amp to 50 Amp RV Generator Adapter Cord 12 Inch, STW 10/3, L5-30P Locking Male Plug to 14-50R Female with LED Power Indicator, Green : Patio, Lawn & Garden
parkworld Generator 30 Amp 3-Prong Locking L5-30P Plug to 50 Amp RV 4-Prong 14-50R Outlet Splitter Adapter(L5-30P to 14-50R)For RV 691937 - The Home Depot