Exclusive hub-end water seal keeps the nasty stuff out of precious parts Constructed of ultra high-strength, corrosion-resistant stainless steel Mirror-smooth finish and polished hub resists cavitation Impeller pitch is determined by casting, not bending X-prop series impellers produce the most powerful propulsion in the water from an advanced design that incorporates a high-compression hub and cambered blades. IMPELLERR YAM 13-19
