Features: Multi-stage filtration system: Equipped with 2 filter pieces of cotton, effectively filtering impurities in the aquarium and keeping the water clean. Mechanical and biochemical filtration system: Suitable for freshwater and seawater aquariums, meeting the needs of different environments. Easy installation: Suitable for 5- to 10-gallon aquariums, with a pumping height of 60cm and pumping 205L of water per hour, the operation is simple and convenient. Oil film treatment: One model comes with oil film treatment, and one does not. You can choose according to your needs. The one with oil film can remove the oil film on the water surface and make the light more transparent. Oxygenation function: The filter without oil film, the falling water will immerse the oxygen in the air into the tank, playing a certain oxygenation role. Specification: Optional Model: DH06 (Without oil film treatment) / DH06-1 (With oil film treatment) Plug: US Standard Material: Plastic Voltage: 110V 60Hz Power: 3W HMAX: 60cm FMAX: 250L/H Wire Length: 112cm(3.67ft) Product Size: DH06: 195*105*80mm(7.6*4.1*3.1inch); DH06-1: 225*105*80mm(9.9*4.1*3.1inch) Package Size: 113*90*120mm Packaging Weight: 260g Package List: 1* Aquarium Filter