Both the Harris Flotebote Grand Mariner 240 2009 and the Harris Flotebote Grand Mariner 250 SEL 2009 are pontoon designs, both built in aluminium, so 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 2009 at 25,0 ft versus Harris Flotebote Grand Mariner 250 SEL 2009 at 27,0 ft. Weight tells a clearer story for trailering families: the Harris Flotebote Grand Mariner 250 SEL 2009 tips the scales at 4 610 lbs - 2 110 lbs less than the Harris Flotebote Grand Mariner 240 2009 at 2 500 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 power gap is worth calling out. Rated to 260 hp, the Harris Flotebote Grand Mariner 250 SEL 2009 has a 110-hp advantage over the Harris Flotebote Grand Mariner 240 2009's 150-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load.

Both boats are rated for 16 passengers - a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.