Extrusion weight limits for attached accessories?

Does anybody know what the suggested weight limitations are for attaching items to the 80/20 extrusion on the camper platform? I was wondering if mounting a 2 to 4 gallon fuel Rotopax to it would be too heavy or unsafe for the extrusion.


I don’t know a weight, but I do know they strongly say no road showers as water inside can create a ton of dynamic force.


Jedgar, thanks. That makes sense, I’ll scrap the Rotopax idea since it is also a liquid.