Santevia Water Systems Ceramic Pre-Filter<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Filter Life: Ceramic pre-filter: 1 year</li><li>Compressed and fired diatomaceous earth</li><li>Pore size of 0.3 of a micron</li><li>Filters rust， sediments， bacteria， germs and parasites</li><li>Use abrasive sponge to clean</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31jsOTudVsL.jpg" noproxy>