1、3 In 1: Circulation, filtration, add oxygen. Helping solve multiple problems with your fish tank. Convenient, economical and save energy. 2、With Surface Skimmer : The oil slick can be separated, and the oil slick is sucked into the water basket and into the water tube, would not hurt fish and shrimp. 3、Low Noise \u0026 Beneficial: Low noise, no need worry about affecting your sleep, the flow rate is adjustable. Great help to restore the natural water quality, and provide the most suitable living environment for your fishes. 4、Filtering Effectively: Built-in biochemical filter plate, the filter materials also can be placed in the aquarium filter to improve the filtering effect, to cultivate nitrifying media efficiently, removal of astringency, adsorption of impurities. 5、Warranty: If there are any problems, please contact our store in time. We will give you a satisfactory solution. Thank you for your understanding and welcome next time. The aquarium filter is an excellent choice for meeting the circulation needs of any small to a medium freshwater aquarium. This 3-in-1 power filter performs 3 functions at the same time: water filtration, water circulation, add oxygen. Helping solve multiple problems with your fish tank. Convenient, economical and save energy. Also, a great help to restore the natural water quality, and provide the most suitable living environment for your fishes. Features: 3 In 1: Circulation, filtration, add oxygen. Helping solve multiple problems with your fish tank. Convenient, economical and save energy. With Surface Skimmer : The oil slick can be separated, and the oil slick is sucked into the water basket and into the water tube, would not hurt fish and shrimp. Low Noise & Beneficial: Low noise, no need to worry about affecting your sleep, the flow rate is adjustable. Great help to restore the natural water quality, and provide the most suitable living environment for your fishes. Filtering Effectively: Built-in biochemical filter plate, the filter materials also can be placed in the aquarium filter to improve the filtering effect, to cultivate nitrifying media efficiently, removal of astringency, adsorption of impurities. Warranty: If there are any problems, please contact our store in time. We will give you a satisfactory solution. Thank you for your understanding and welcome next time. Specification: Item: Aquarium filter Optional types: 6 types Main material: ABS Voltage: 220V-240V Type 1: Power 2.5W, flow rate 160L / H, size: 88 * 36 * 220mm, wire length: 1.2m, suitable for fish tanks under 30cm; Type 2: Power 2.5W, flow rate 160L / H, size: 88 * 36 * 187mm, wire length: 1.1m, suitable for fish tanks under 25cm; Type 3: Power 3W, flow rate 180L / H, size: 140 * 50 * 380mm, wire length: 1.4m, suitable for 30-40cm fish tank; Type 4: power 3.5W, flow rate 200L / H, size: 180 * 50 * 380mm, wire length: 1.4m, suitable for 40-50cm fish tank; Type 5: Power 4.2W, flow rate 260L / H, size: 235 * 50 * 460mm, wire length: 1.4m, suitable for 50-60cm fish tank; Type 6: power 4.8W, flow rate 290L / H, size: 293 * 50 * 540mm, wire length: 1.4m, suitable for 60-70cm fish tank; Note: *The EU plug converter will be sent for you. * When using for the first time, be sure to fill with water in the aquarium filter.  Later, you can restart it without adding water again. * There could be some deviations due to manual measurement or slight color difference owing to photographing condition. Thank you for your understanding. Package Information: Package size: Type 1: 130 * 120 * 75mm; Type 2: 120 * 120 * 75mm; Type 3: 180 * 160 * 100mm; Type 4: 185 * 170 * 100mm;  Type 5: 245 * 170 * 100mm; Type 6: 300 * 170 * 100mm; Package weight: Type 1: 300g; Type 2: 230g; Type 3: 520g; Type 4: 620g; Type 5: 700g; Type 6: 800g; Gift Box Package Packing List: 1* Aquarium filter 1* Aquarium filter