(3 Pack) Fluval Filter Foam Blocks， 104/105， 2 Blocks each</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>6 Total Fluval Filter Foam Blocks 104/105(3 Packs with 2 per Pack)</li><li>Provides mechanical filteration of large particles</li><li>Prevents premature clogging</li><li>Enhances biological filtration</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/51ZUtoPB4hL.jpg' noproxy></br>