Omni RS3-DS String Wound Whole House Replacement Water Filter Cartridge<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Omnifilter sediment string wound cartridge， pack of 2 - 131007</li><li>This is highly durable</li><li>This is manufactured in china</li><li>Reduces rust and sediment</li><li>Fits Whole House Water Filter OB1 (1653-7201) and OB5</li><li>3 months or 15，000-Gallon average cartridge life</li><li>5 GPM flow rate</li><li>20-Micron rating</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31tzwPK8fLL.jpg" noproxy>