Hagen 3-Pack AquaClear 9-Ounce Activated Carbon Water Filter Insert for Aquarium (3-Pack)</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Convenient 3 pack.</li><li>Improves water clarity， color and odor</li><li>Exclusively designed for use in the AquaClear 110 & 500 Power Filter</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/51u11Z5-GxL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51LTq2ui8fL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51Gv2LvSyRL.jpg' noproxy></br>