Features: Help keep fishtank water beautifully clear. It can effectively filter impurities, keep water clean and while oxygenating water for fish health. Featuring a filter pad for mechanical cleaning, black sponge, and in durable plastic construction, this filter operates quietly with minimal energy consumption. It is suitable for users in homes, offices, hotel and other place who use pumps. Our filter can be widely used in waterscape facilities such as fish tanks, flower pond and fountains to ensure a clear and clear water quality and provide a healthy environment. Specifications: Component:Plastic Type:2822/2830/2831 Size of 2822: Approx.17x23cm/6.69x9.06inch Size of 2830: Approx.9x14.50cm/3.54x5.71inch Size of 2831: Approx.14x14cm/5.51x5.51inch Quantity: 2Pcs Package Includes: 2Pcs FishTank Filter note: 1.Please allow 1-2cm errors due to manual measurement, note that you donot mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.