When two boats share the same hull type — in this case both the Harris Flotebote Grand Mariner 240 2011 and the Harris Flotebote Grand Mariner 250 SEL 2011 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 240 2011 at 24,0 ft versus Harris Flotebote Grand Mariner 250 SEL 2011 at 25,0 ft. Weight tells a clearer story for trailering families: the Harris Flotebote Grand Mariner 250 SEL 2011 tips the scales at 3 537 lbs — 3 534 lbs less than the Harris Flotebote Grand Mariner 240 2011 at 3 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.

The Harris Flotebote Grand Mariner 250 SEL 2011 tops out at 425 hp. Engine specs for the Harris Flotebote Grand Mariner 240 2011 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Harris Flotebote Grand Mariner 250 SEL 2011 carries 81 gallons versus 5 gallons in the Harris Flotebote Grand Mariner 240 2011. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

For family outings this is probably the sharpest distinction between the two. The Harris Flotebote Grand Mariner 250 SEL 2011 is rated for 16 passengers, while the Harris Flotebote Grand Mariner 240 2011 caps at 12. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Harris Flotebote Grand Mariner 250 SEL 2011 could be the deciding factor.