Lee's Clover Dual-Action Foam Filter， Fits up to 40-Gallon</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Filters are composed of open-celled foam</li><li>Great for hatching and raising brine shrimp</li><li>Replacement foam filter pads are also available</li><li>Accommodates filtering needs up to 40-gallons/ 152-liter</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/41Bh-Lt8%2BuL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/21NlNEh0QgL.jpg' noproxy></br>