Marineland Rite-Size Cartridge Refills</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>A perfect fit for every filter</li><li>Meets the highest standards of water purification and operational ease</li><li>Each cartridge is pre-assembled</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/51UCFrDEBVL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41nwbHw74cL.jpg' noproxy></br>