Hagen 12-Pack Fluval U3 Poly/Carbon Cartridge Aquarium Water Filter</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Convenient 24 pack; (12) 2 pack</li><li>Custom fit for the Fluval U3 Filter</li><li>Provides effective mechanical 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/51x0a1bxwDL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/31uw6hbDE0L.jpg' noproxy></br>