When two boats share the same hull type — in this case both the Bennington 20 SLX 2013 and the Bennington 22 SF 2013 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 — Bennington 20 SLX 2013 at 20,4 ft versus Bennington 22 SF 2013 at 21,8 ft. Weight tells a clearer story for trailering families: the Bennington 22 SF 2013 tips the scales at 2 553 lbs — 792 lbs less than the Bennington 20 SLX 2013 at 1 761 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 115 hp, the Bennington 22 SF 2013 has a 45-hp advantage over the Bennington 20 SLX 2013's 70-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 21 gal and 21 gal — so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Bennington 22 SF 2013 is rated for 25 passengers, while the Bennington 20 SLX 2013 caps at 23. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Bennington 22 SF 2013 could be the deciding factor.
Bottom line: Choose the Bennington 22 SF 2013 if your priority is putting more people on the water — it handles 25 passengers and at 21,8 ft it has the deck room to back that rating up comfortably. The Bennington 20 SLX 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 23 that costs less to run day-to-day.