Impeller - 13/18 - Kawasaki 550SXCaracteristicas: The blade has a variable pitch, designed to give both strong low end thrust and unmatched top end performance Exclusive hub end water seal keeps the nasty stuff out of precious parts Constructed of ultra high strength, corrosion resistant stainless steel Race, tow waterskiers and carry multiple passengers with ease Mirror smooth finish and polished hub resists cavitation Impeller pitch is determined by casting, not bending Grunt and