AQUANEAT Bio Sponge Filter Betta Fry Aquarium Fish Tank Double Sponge XY-2831(S)/XY-2822(L)</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Sponge filters provide both mechanical and biological filtration.</li><li>Max. Tank Size: 10 Gallon</li><li>Product Dimension: 5.0”L x 1.8”W x 5.5”H(XY-2831)</li><li>Sponge Dimension: 1.8”D x 3.0”H(XY-2831)</li><li>Includes: 4 pieces of sponge filter</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/51apx8FU4gL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41E7aV-8jHL.jpg' noproxy></br>