Bennington 20SL Pontoon Boats for Sale
The Bennington 20SL is one of the most practical pontoon boats for New Hampshire lakes. At 21 feet with enough layout and engine flexibility to cover fishing, cruising, and light watersports, it sits at a size and price point that makes sense for most buyers on these lakes. Winnisquam Marine carries one of the largest Bennington 20SL selections in the Lakes Region, with both standard two-tube and SPS performance configurations available across three locations.
Bennington 20SL Pontoon Boats
The 20SL sits in Bennington’s S Line, their core range of 16 to 25-foot models built for practical everyday use. It is a 21-foot aluminum-hulled pontoon with an open bow layout, standard bimini top, and seating for up to 10 passengers. Engine options run from 60 to 150 horsepower, depending on configuration, with the SPS models supporting higher power ratings through the addition of a performance center tube.
What makes the 20SL a strong fit for NH lakes specifically is its flexibility. Lake Winnisquam, Ossipee Lake, and the quieter stretches of Lake Winnipesaukee are all lakes where a 21-foot boat is the right size. It is easy to trailer, launches without drama at most public ramps, and does not require a heavy-duty tow vehicle, the way a 26-foot tritoon would. For buyers who plan to take the boat out regularly rather than leaving it in a slip, the 20SL is one of the easier boats to own.
Why Bennington 20SL Boats
The base 20SL runs on two aluminum tubes and is rated for engines up to 90 horsepower. It handles calm water well, is stable at rest, and is a comfortable boat for most conditions on smaller NH lakes. The SPS version adds a third performance tube in the center, WaveTamer technology, and hydraulic steering, and pushes the engine rating up to 150 horsepower. The handling difference between the two is noticeable once the lake picks up any chop or you start towing.
In practical terms, if your lake is calm most of the time and your use is relaxed cruising and occasional fishing, the standard two-tube 20SL does the job cleanly. If you want to tow a tube or skier, run on Lake Winnipesaukee in the afternoon, or simply want a more confident ride with a bigger engine, the SPS is worth the step up. Both configurations are in stock and available to test before you buy.
THREE LOCATIONS
ACROSS THE LAKES REGION
Winnisquam Marine
(Main Location)
Our home base with multiple showrooms, including a Bennington and Bayliner Supercenter, featuring 50+ boats on display in a bright, heated space, plus service, rentals, and storage.
Winni Marine
Lake Winnipesaukee
Near Weirs Beach in the Paugus Bay Channel. Rentals, valet, slips, gas dock, ship store, service, and storage.
Winnisquam Marine of Ossipee
Boat sales, service, and storage. 30 boats on site. Bennington is the top seller here.
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Winnisquam
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Winni
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Winnisquam Marine
of Ossipee
