Usage Tips:Made of high-quality ceramic, environmentally friendly and durable materials, wear-resistant and corrosion-resistant, and can be used for a long time. The shell is made of ABS plastic, with good waterproof performance, and the interior adopts new noise reduction technology to reduce vibration generated by the machine. It can be placed anywhere for quiet operation. The rotor of the product is made of ceramic, with a smooth surface and a removable design, which is easier to clean and more durable. Suitable for aquarium water pumps, air conditioning water pumps, engraving machine water pumps, craft water pumps, garden fountains and other related aquatic product accessories. > Easy to use and replace, just remove the filter head, open the bayonet lock on the rotor cover, remove the faulty rotor with shaft and bearings, and replace it with a spare rotor with new ones bearings.