Material: Water pump impeller made of quality steel, eco-friendly and durable material, wear-resistant and corrosion-resistant, for long-term use. Detachable design: The product impeller is made of steel, smooth surface and detachable design make it easy to clean, ensure longer durability. Stable performance: The replacement water pump impeller adopts electromagnetic impeller construction to ensure stable performance and longevity. Easy to replace: Remove the filter head, open the bayonet of the impeller cover, remove the faulty impeller with shaft and bearings, and replace them with a replacement impeller and new bearings. Scope of application: Aquarium series water pump, environmentally friendly air conditioner series water pump, plumbing mattress series water pump, engraving machine series water pump, craft series water pump, garden fountain, atomizer, all kinds of underwater lights and other related aquarium accessories. Note: The data are all manually measured, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.