As netjam said. Just get you a high-quality extension cord if used, one that is 10gauge wire if you can find it. If you can use the fiver cords, then just the adapter is needed.
2016 Tiffin 40 QBH
2015 38RSSA, traded
2005 TK3 #1869, 10 yrs of memories,
2017 F450 KR--one more Ford is it
2009 F450 4x4-died; 2010 F450-retired