Pura (Magnavore) APU00414 3-Pack 300-Micron Media Bags for Aquarium Filter， 6 by 12-Inch</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Media bags are designed for professional filtration applications</li><li>Self fastening closure is far superior to drawstrings and provides an additional leak proof safety factor</li><li>Features 300-micron mesh， keeps media in preventing fines from washing out of the bag</li><li>Washable， reusable and completely safe for both fresh and saltwater aquariums</li><li>Provides extra versatility， neatly folds over and will fit many of your specific applications</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/511UrhYdbUL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41A3gesz8bL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/31dhr5RC%2BVL.jpg' noproxy></br>