EHEIM Mech Mechanical Pre-Filtering Medium (Hollow Ceramic Rings) 5L</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Coarse filter material for basic cleaning as the first layer at water intake</li><li>Specially formed ceramic rings</li><li>Traps coarse dirt without slowing water flow</li><li>Can be washed and used several times</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/5180%2BX9e06L.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/31B-g0VMSGL.jpg' noproxy></br>