Omni RS1-SS Pleated Paper Whole House Replacement Water Filter Cartridge<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Reduces rust and sediment</li><li>For use with the Whole House Water Filter OB1 (1653-7201)</li><li>20-Micron rating</li><li>Pleated paper</li><li>3 months or 15，000-Gallon average cartridge life</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41MwHiegepL.jpg" noproxy>