Both the Manitou Pontoons 22 Osprey 2009 and the Manitou Pontoons 24 Encore Twin Tube 2012 are pontoon designs, the first built in fibreglass and the second 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 - Manitou Pontoons 22 Osprey 2009 at 22,0 ft versus Manitou Pontoons 24 Encore Twin Tube 2012 at 24,9 ft. Weight tells a clearer story for trailering families: the Manitou Pontoons 22 Osprey 2009 tips the scales at 2 460 lbs - 200 lbs more than the Manitou Pontoons 24 Encore Twin Tube 2012 at 2 260 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 250 hp, the Manitou Pontoons 22 Osprey 2009 has a 120-hp advantage over the Manitou Pontoons 24 Encore Twin Tube 2012's 130-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Manitou Pontoons 24 Encore Twin Tube 2012 carries 34 gallons versus 28 gallons in the Manitou Pontoons 22 Osprey 2009. 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 Manitou Pontoons 24 Encore Twin Tube 2012 is rated for 14 passengers, while the Manitou Pontoons 22 Osprey 2009 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Manitou Pontoons 24 Encore Twin Tube 2012 could be the deciding factor.
Both are 3-tube and 2-tube pontoon designs respectively. Tube diameter and gauge affect stability and load capacity - more so than most buyers realize when comparing on paper.
Bottom line: Choose the Manitou Pontoons 24 Encore Twin Tube 2012 if your priority is putting more people on the water - it handles 14 passengers and at 24,9 ft it has the deck room to back that rating up comfortably. The Manitou Pontoons 22 Osprey 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 10 that costs less to run day-to-day.