Both the Harris Flotebote Grand Mariner 240 2009 and the Harris Flotebote Sunliner 240 2011 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 Sunliner 240 2011 at 24,0 ft. Weight tells a clearer story for trailering families: the Harris Flotebote Sunliner 240 2011 tips the scales at 2 835 lbs - 335 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 Harris Flotebote Grand Mariner 240 2009 carries a rated maximum of 150 hp. Engine data for the Harris Flotebote Sunliner 240 2011 wasn't available in our records - check the manufacturer's spec sheet before sizing a motor.

For family outings this is probably the sharpest distinction between the two. The Harris Flotebote Grand Mariner 240 2009 is rated for 16 passengers, while the Harris Flotebote Sunliner 240 2011 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 Grand Mariner 240 2009 could be the deciding factor.