Yamaha F3RK7910V0: Fits: 2017-2022 Yamaha 21′ Ft Boats – (Does not fit any other years or models) See product description for model fitmentThe WakeEnhancer “scoops” water towards the centreline, feeding the wake with a massive amount of clean water. The result is a wake that’s more easily surfable, with a nice curl and deeper pocket that provides a larger riding area.Fits flush to the bottom of the swim platform with no additional parts or spacersSymmetrical design fits port and starboard sidesAttaches quickly, no tools required