Aqueon Filter Cartridge Medium Size 36-pack (3 Boxes of 12 Cartridges Each)</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>36-pack (3 Boxes of 12 Cartridges Each) Aqueon Filter Cartridge Medium Size</li><li>Fits Aqueon QuietFlow 10 power filter</li><li>Ready-to-use， preassembled filter cartridges install in seconds</li><li>Helps create crystal-clear， healthy water</li><li>Patented dual-sided replaceable dense-floss cartridges filter out more particles and debris</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/51V4ETHPyBL.jpg' noproxy></br>