Yee 5in1 Built-in Filter 2sections 25W YGG-128 Aquarium Filter Three-stage fine filtration system； No more troubles of muddy water Inhale bottom residue 1） Primary filter warehouse： Grid blocking 2） Secondary carbon molecule： Filter cotton filtration 3）Tertiary carbon molecule：Filter cotton filtration 5in1 Function 1. Oxygen pump 2. Wave pump 3. Water pump 4. Suction on droppings 5. Filter Double filter collocation: Physical filtration + biochemical filtration – Abandon the traditional filter bucket, only filter cotton or filter material design – Putting the filter cotton and filter material together, the filter culture effect is better Design: 1. Separate Bin Design; Filter more thoroughly – The garbage storage bin is separated from the filter material, the impurities can completely pollute the water quality again, and the overspeed is more thorough 2. Convenient sewage outlet； All-round poop suction 3. Anti-vibration non-slip foot pad: Effectively reduce noise and ensure the smooth operation of the machine 4. Use durable permanent magnet rotor: Corrosion and acid and alkali resistance 5. 3C certification power cord: Give you more peace of mind 6. Adjustable air volume, wave size: Control your air volume as you like.