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