Today I took a closer look at the battery box I purchased and the one installed in the camper . The boxes are both bigger than the Group 24 battery. Both boxes measure 12.5 " wide x 7.250 " deep and 10 " high . That means I can move up to Group 27 batteries .
The Duracell 6 volt batteries that I linked above will also fit , the height might be tight as the boxes are enclosed with a vent hose . But if I go AGM venting is not an issue . Time to do a little more research
