1. Biochemical Filtration: built-in new V-1 biochemical filter material, it is strong bacteria cultivation and easy to film.2. Physical Filtration: Filtration sponge is added at the bottom to intercept particles of dirt.3. Dark Green Body: beneficial to the multiplication of nitrifying bacteria.4. Safe: strong suction cup to stability.5. Bubble Stone: high-efficiency oxygen supply and it is delicate and quiet.Item Type:Fish Tank FilterModel: LH-300size: 67*189mmMaterial:plasticcolour:Green + blackPackage Contents:1 * filterOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.