2026 Harris Grand Mariner 250 SLDH

The 2026 Harris Grand Mariner 250 SLDH is a 25-foot pontoon built on a three-tube 27-inch diameter chassis with strakes and keel protection. It's powered by a single Mercury 400L Verado V10 engine fitted with power-assist steering and an engine cover. The boat features salt water anodes and a tube protectant metal jacket for durability in marine environments.

The layout combines a single helm with dual helm seating in the SLDH floorplan. The interior uses chestnut brown luxury furniture with charcoal accents and full chestnut teak flooring throughout. Accommodations include dual high-back helm seats, an aft swim seat, a flip-up chaise end table, and a woodgrain luxury sport table. The boat includes in-floor storage and a removable windscreen.

Equipment includes an Ion power-lift tower with black bimini top, a stainless steel three-tube ski tow bar with safety rail, and additional fenders. Audio runs through a JL Diamond sound system with tower speakers. Lighting spans interior and exterior via a C-Zone package. The boat comes with canvas seat covers, two additional 8.8-inch fenders with straps, an American flag, and a battery switch rated for 350–450 amps or joystick control.