9"/15" Long 100/200 Micron Rating Fish Aquarium Ring Nylon Filter Sock Q111-114</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Perfect for using on your return pipe in your sump tank</li><li>Filter sock is made from high quality nylon， and can be cleaned and reused many times</li><li>Ring width: 4 Inches</li><li>Length: 9"(short) and 15"(long) for your choice</li><li>Micron rating: 100 micron (0.1mm) and 200 micron (0.2mm) for your choice</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/31FQNe0Fs8L.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/410pBH2kXsL.jpg' noproxy></br>