JBJ Reaction Canister Coarse Sponge for Aquarium Filters</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Aquarium sponge</li><li>Easy replacement</li><li>Mechanical sponge; carbon bag; ceramic ring bag; biological sponge</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/61GJFE3p8YL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41isQ2enLEL.jpg' noproxy></br>