Description: Brand new and high quality Material: Plastic Size(LxW): Approx. 7x3cm/2.76x1.18inch, Suitable for HW302/402/702. The HW filter canister shaft is a magnetic shaft rotor specially designed for HW series filter canister. It can greatly reduce the noise generated by the rotor after a long period of wear. to avoid the flow of water is either too big or too small. Package Includes: 1 Piece Rotor