The Fox Mountain 235RLS is the smallest 5th-wheel they offer measuring at 27 ft 10 inches. It has the Solx 400 watt solar package along with the above mentioned, Onan 3.6 propane fueled generator. We have also added a surround soundbar, Flexguard awning, up-grade 15K A/C, and 2 inch receiver hitch.Tank capacities are fresh water 59 gal, gray tank 42 gal and black tank 36 gal. Tire size is Goodyear endurance ST235 80R16 E rated.Contact us for a complete list of features.