Marineland Penguin Rite Size A Water Filter Cartridges</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Convenient 12pk</li><li>(2) 6pk boxes of OEM Marineland Cartridges</li><li>Fits Penguin Mini and #100 Filters</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/510i5z1PtaL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51MyNALNsEL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41ptQKmpM2L.jpg' noproxy></br>