Features: 1. Made of high quality material which is safe, odorless, non-toxic, environmental and durable.2. Connected with the air pump, can produce a lot of bubbles and improve water oxygen level, achieving double effect of oxygenation and biofiltration and keeping water clean.3. Can absorb dirt, quickly resolve fish feces and eliminate smell in water.4. Comes with the filter material box to store more filter material, creating more effective filtering effect.5. Low noise, and will not be blocked for long term use.6. With strong suction cups, not easy to fall off.Specification: Condition: 100% Brand NewItem Type: Aquarium Sponge FilterMaterial: Plastic + SpongeColor: Black + GreenOptions: QS-100A, QS-200APackage Weight: Approx. 158-207gApplication: fish tank, aquarium, etc.TypeSizeSponge DiameterSponge HeightFilter Material Box HeightSuitable Tank SizeFilter Material Box QuantityFilter Material Box VolumeExtension Tube LengthQS-100A150*135mm/5.9*5.3inch48mm/1.9inch 84mm/3.3inch35mm/1.4inch<60cm/23.6inch2100ml 195-275mm/7.7-10.8inchQS-200A186*150mm/7.3*5.9inch60mm/2.4inch108mm/4.3inch45mm/1.8inch60cm/23.6inch 2 200ml 195-275mm/7.7-10.8inchPackage Included: 1 x Aquarium Sponge FilterNote:1. Please do not skew it, so as not to make the filter material into the outlet.2. During installation, removal and use, please don't make the filter into the outlet on the black cover to avoid plugging.3. Must use aquarium water when rinsing the sponge, do not use hot water..