This is our favorite propeller for most Ski and Sport Nautiques these days!  We love this prop!
 
13" x 15.5" -- 1" Bore -- Right-Hand -- .090 Cup -- 4-Blade
 
By refining their original superior design, OJ has produced their finest performing line of propellers. The OJ SkiPro 428 propellers boast an enhanced pitch distribution along with a new blade shape that produces better top end and low end power. Providing the best of speed and pulling power, the OJ SkiPro propellers outrun and overpower the competition. Combined with the OJ legacy for high-quality props with outstanding customer service, the combination of the SkiPro 4-Blade 13" x 15.5" Propeller and WakeMAKERS industry-leading knowledge and customer service is impossible to beat.