Easy to replace: Remove the filter head, open the wheel cover bayonet catch, remove the faulty wheel with axle and bearings and replace them with a spare wheel and new bearings Stable performance: adopts electromagnetic impeller construction to ensure stable performance and longevity Suitable for: This replacement electromagnetic impeller is specially designed for miniature submersible pumps Complete Kit: This filter impeller kit complete with all replaceable parts including rotor, shaft and bearing Durable Material: Submersible Pumps Filter Impeller Replacement is made of durable and robust plastic and metal materials