Tetra 19015 Replacement Foam， Flat Box Filter</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Reduces pump and fountain cloggs</li><li>For use wth FK3， FK5， FK6， and SF1 pond filter boxes</li><li>For mid size ponds</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/51yJ0qx4pQL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41i17LamtTL.jpg' noproxy></br>