When two boats share the same hull type — in this case both the Harris Flotebote Grand Mariner 220 2009 and the Harris Flotebote Super Sunliner LX 230 2008 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 Grand Mariner 220 2009 at 23,0 ft versus Harris Flotebote Super Sunliner LX 230 2008 at 24,0 ft. Weight tells a clearer story for trailering families: the Harris Flotebote Super Sunliner LX 230 2008 tips the scales at 2 398 lbs — 113 lbs less than the Harris Flotebote Grand Mariner 220 2009 at 2 285 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
Both boats share a closely matched power ceiling — 135 hp for the Harris Flotebote Grand Mariner 220 2009 and 150 hp for the Harris Flotebote Super Sunliner LX 230 2008. 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 Super Sunliner LX 230 2008 is rated for 15 passengers, while the Harris Flotebote Grand Mariner 220 2009 caps at 14. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Harris Flotebote Super Sunliner LX 230 2008 could be the deciding factor.
Bottom line: Choose the Harris Flotebote Super Sunliner LX 230 2008 if your priority is putting more people on the water — it handles 15 passengers and at 24,0 ft it has the deck room to back that rating up comfortably. The Harris Flotebote Grand Mariner 220 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 14 that costs less to run day-to-day.