2026 Harris Grand Mariner 250

The 2026 Harris Grand Mariner 250 is a 25-foot aluminum pontoon built on an RPM 325 tri-toon chassis and powered by a single Mercury 350 hp V10 Verado engine. The boat features a Black Edition fence and rails, a 12-foot bimini top, and a raised helm station for commanding visibility and control.

Accommodations and seating are finished with Luxe Caviar Cool Feel vinyl upholstery. The helm integrates dual Simrad NSX9 touchscreen displays with Mercury Smartcraft Connect technology, while entertainment comes from a JL Platinum radio system with six JL M6 speakers and two JL subwoofers.

Equipment includes a ski tow bar, stern safety rail with chains, a total lighting package featuring interior and exterior RGB accent lighting, in-floor storage, a LilliPad easy-step boarding ladder, and an onboard battery charger. The boat is supplied with a full mooring cover with quick-clip fasteners.