Material: Made of high quality material, environmentally friendly, to use and easy to replace, suitable for various types of water.Improve Water: The fish manure isolation bin design, isolate impurities and fishing waste, effectively improving water quality, perfect for your tankFeature: Strong suction, low noise and silent operation, will not disturb or frighten your fish.Easy to Use: Easy to disassemble and easy to clean.Application: linked to air pump or three in one water pump, not recommended for use in fish tanks with sand . Note: Air pump not included.Specification:Color: ClearSize Chart:As Your Choice:6.7cmx16cm/2.64inchx6.30inch6.7cmx25.5cm/2.64inchx10.04inch6.7cmx35cm/2.64inchx13.78inchPackage Includes:1 Automatic Cleaning FilterNote:Please allow slightly errors due to manual measurement and different monitors.