Use high-quality ceramic material, environmentally friendly and durable, wear-resistant and corrosion-resistant The shell is made of ABS plastic, which has good waterproof performance. adopts new internal noise reduction technology to reduce the vibration generated by the machine. It can be placed in any position to achieve quiet operation. The rotor of the product is made of ceramic, its smooth surface and detachable design make it easy to clean and ensure longer durability. Suitable for aquarium water pumps, air conditioner water pumps, engraving machine water pumps, craft water pumps, garden fountains and other related aquarium product accessories. It is easy to use and replace, just remove the filter head, open the bayonet lock of the rotor cover, remove the defective rotor with shaft and ring and replace it with a rotor of replacement with a new ring. illustrate: sustainable. Brand new and high quality. If your impeller is damaged and the pump/filter no longer works, this is a direct replacement. Specification: Material: Ceramic black Size: Total length 69mm Package includes: Replacement turbine for 1 filter Comment: Due to the light and screen setting difference, the product color may be slightly different from the picture. Due to the different manual measurement, please allow slight differences in size.