Hydro Life 52418 C-2471 Replacement Cartridge<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Replacement cartridge 5 series fits most 10-inch filter housings</li><li>Radial flow Carbon Block Cartridge</li><li>Reduces cysts such as cryptosporidium and giardia lamblia by 99%</li><li>Easily replace cartridge without tools</li><li>One micron absolute filtration reduces chlorine by 99% and virtually eliminates sediment</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41mAUSJduAL.jpg" noproxy>