Matching a inflatable non rigid Mercury Heavy Duty Series 2009 against a inflatable rigid Mercury PT750 2008 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
Size is the most obvious dividing line here. The Mercury PT750 2008 measures 24,0 feet overall (2008), giving it roughly 12,0 additional feet of deck space compared to the Mercury Heavy Duty Series 2009 at 12,0 feet (2009). Weight tells a clearer story for trailering families: the Mercury PT750 2008 tips the scales at 2 127 lbs — 1 911 lbs less than the Mercury Heavy Duty Series 2009 at 216 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 300 hp, the Mercury PT750 2008 has a 275-hp advantage over the Mercury Heavy Duty Series 2009's 25-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
For family outings this is probably the sharpest distinction between the two. The Mercury PT750 2008 is rated for 22 passengers, while the Mercury Heavy Duty Series 2009 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Mercury PT750 2008 could be the deciding factor.
Bottom line: Choose the Mercury PT750 2008 if your priority is putting more people on the water — it handles 22 passengers and at 24,0 ft it has the deck room to back that rating up comfortably. The Mercury Heavy Duty Series 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.