Seems that someone has walked off with our 30AMP twist lock power cord for our Travel Trailer. They took that along with some other wire on the side of our house. I see Walmart has the black RV cord...
Look at the NEMA number on the cord. The rig should have it inside the receptacle. I have not seen any twist lock cords at my Walmart. They have different 30 amp standard extension cords. You could verify configuration on the the Marinco website. I beleive the 30 amp are the same. Marinco
