SpinClearView S-300 Commercial grade marine clear view 12V windowSpinClearView S 300, Commercial grade marine clear view 12V window. Used on yachts, fishing, police, military, commercial vessels. The SpinClearView S 300 keeps a glass disk free of rain, snow and sea water by a nearly silent and fast rotation of 1500 rpm. The SpinClearView S 300 will never smear from drying salt water unlike regular wiper blades that require a fresh water washdown. The precision made 12 Volt DS motor is placed in the center secured