Nujet The Destroyer Impeller KW-B5.0 When it comes to performance, these impellers are state-of-the-art Unique 3-D blade design was developed using the latest hydrodynamics research Blades have a super-progressive pitch and minimal overlap for hard acceleration throughout the powerband and increased top-end speed 3-D design reduces cavitation in all water conditions Precision-cast using aerospace-grade stainless steel, then heattreated, CNC-machined and dynamically balanced