Pentek WPX25BB97P String-Wound Polypropylene Filter Cartridge， 10" x 4.5"， 25 Microns</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Reduces sand， silt， scale， and rust particles in residential and municipal drinking water and industrial fluid applications</li><li>Nominal filtration rating of 25 microns</li><li>Fibrillated polypropylene cord wound on a polypropylene core for strength and minimum extractables</li><li>Initial pressure drop of 10 psi at a flow rate of 20 gpm</li><li>Temperature range of 40 to 165 degrees F (4.4 to 74 degrees C).</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/31vpKualVPL.jpg' noproxy></br>