When two boats share the same hull type — in this case both the Harris Flotebote Crowne 250 2009 and the Harris Flotebote Grand Mariner SL 250 (2-Tube) 2010 are pontoon designs with aluminum construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
On paper these two are close siblings in the size department — Harris Flotebote Crowne 250 2009 at 26,0 ft versus Harris Flotebote Grand Mariner SL 250 (2-Tube) 2010 at 25,0 ft. At 2 865 lbs and 2 963 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
Both boats share a closely matched power ceiling — 175 hp for the Harris Flotebote Crowne 250 2009 and 175 hp for the Harris Flotebote Grand Mariner SL 250 (2-Tube) 2010. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup.
For family outings this is probably the sharpest distinction between the two. The Harris Flotebote Crowne 250 2009 is rated for 15 passengers, while the Harris Flotebote Grand Mariner SL 250 (2-Tube) 2010 caps at 13. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Harris Flotebote Crowne 250 2009 could be the deciding factor.
Bottom line: Choose the Harris Flotebote Crowne 250 2009 if your priority is putting more people on the water — it handles 15 passengers and at 26,0 ft it has the deck room to back that rating up comfortably. The Harris Flotebote Grand Mariner SL 250 (2-Tube) 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 13 that costs less to run day-to-day.