The trailer's hitch weight and your tow vehicle are the determining factors. Be aware that dry (advertised) hitch weight does not usually include LP bottles or battery. Water weighs 8.3 lbs per gallon; where is the fresh water tank located? Are you planning to tow with a full size pickup, or a small SUV or minivan, or something in between? FWD or RWD? The rear suspension and hitch receiver attachments have to be up to the task. You don't want to take too much weight off the front axle of a FWD vehicle, and you don't want your headlights in the tops of the trees. We need more info.