Hard to say! My experience to date with these has been on larger motorhomes (40' and above). All of them had the apparatus in a compartment air-open from below (required by code) at the right rear behind the rear wheels, but higher off the ground. (Understandably in these rigs because everything is higher off the ground. The wheels alone are humongous.)
Rigs with propane fill valves low to the ground have been smaller motorhomes, but those were all somewhat older units, not having remote fill apparatus. (I don't have great memories of these because the lowness of the fill valves meant crawling around on the ground to get the hose connected to them, sometimes with use of a length adapter. Usually cold, snowy, or rainy, of course.)
Originally Posted by Boxster1971
Sure it's not unique. But I doubt any of the motorhomes you are talking about have the propane fill panel located right behind the rear wheel only 6 inches from the ground. It's the lowest point on my van. See attached diagram, item 4, for location on the Interstates.