Easy replacement: Remove the filter head, open the bayonet lock of the wheel cover, remove the defective wheel with axle and bearings and replace it with a spare wheel and new bearings. Stable performance: Adopts electromagnetic impeller design to ensure stable performance and durability Suitable for: This electromagnetic replacement impeller is specially designed for miniature submersible pumps Complete set: This complete filter impeller set with all replaceable parts including rotor, shaft and bearings Durable material: The filter impeller replacement of the submersible pumps is made of durable and robust plastic and metal materials