Made of high quality ceramic, eco-friendly and durable material, wear-resistant and corrosion-resistant, for long-term use. The outer shell is made of ABS plastic with good sealing and new technology of interior noise attenuation to reduce vibration generated by the machine. It can be placed on any place for quiet operation.The product impeller is made of ceramic, smooth surface and detachable design make it easier to clean, ensure longer durability.Suitable for Aquarium water pump, pump air conditioning water pump, carving machine water pump, handicraft water pump, garden fountains, and other relevant aquatic product accessories.Easy to use and replace, just remove the filter head, open the bayonet lock of the rotor cover, take out the defective rotor with shaft and bearings and replace it with a spare rotor with new bearings.