Zilla Aquatic Reptile Internal Filter - Size 20</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>For use with 40 Gallon Tanks with 20 Gallons of Water</li><li>Wide cartridge provides larger surface area for trapping debris.</li><li>Protective grate within the water return prevents the reptile from climbing into the filter.</li><li>Includes a filter floss cartridge to provide superior filtration.</li><li>Suction cups secure filter in place.</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/51cD72Iz7bL.jpg' noproxy></br>