I contacted that litetank company and they told me that their tanks will fit on the standard 2 bottle with a little mod.
Here is his reply -
yes our cylinders can be mounted on a Manchester dual back base, suggest putting a piece of 3/8 plywood under the cylinders so the whole down bar will hold the cylinders in place.
Now to figure out of Jayco used the Manchester Propane dual base.
Model X19H Expandable
GMC Sierra Pick up
Been a camper since I was a kid, and that was a long time ago :)
From pup tents with no floors, to tents with floors and flies, to a pop up, to the expandable.