Ours also came with the flame king. Luckily during our walk through we had them set it up and saw that the line was to short to make the connection so we ordered a longer one. However, that was last fall and we didn't use the grill the one time we took it out. The line was ordered and was supposed to be put inside the camper over winter storage. I guess I need to add this to my list of questions for them. I'd hate to get it out of storage next month and find the grill isn't usable.
Interesting in the grill manual parts page it shows the hose assembly as sold separately! When Keystone changed units did they just distribute what hose assembly's they had on hand. The length is wrong for my model along with the others.
Thanks for bringing this up!