Cascade® Filter Replacement Cartridges for Cascade 100 Hang-on Power Filters， 12-pack</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Convenient 12 pack of filter catridges</li><li>Convenient， no-fuss replacement cartridges for your Cascade 100 hang-on power filter.</li><li>Floss barrier traps particular matter keeping your aquarium clean & clear.</li><li>Activated carbon removes ammonia & nitrites keeping your aquarium healthy.</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/51DC7LUQ4dL.jpg' noproxy></br>