EHEIM Synth Mechanical Filter Media (Phenol-Free Fine Filter Medium) 2 L</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Completely neutral filter wool</li><li>Phenol-free structure traps tiny particles of dirt</li><li>Used as a thin pad as last layer before the water outlet</li><li>Recommended to change this after each filter cleaning</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/51BeSohk9cL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/31AZ0lSqMYL.jpg' noproxy></br>